Quizbank/calcPhyEMqAll/c11
calcPhyEMqAll/c11 ID153478379917
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Exams: A0 A1 A2 B0 B1 B2 C0 C1 C2 D0 D1 D2 E0 E1 E2 F0 F1 F2 G0 G1 G2 H0 H1 H2 I0 I1 I2 J0 J1 J2 K0 K1 K2 L0 L1 L2 M0 M1 M2 N0 N1 N2 O0 O1 O2 P0 P1 P2 Q0 Q1 Q2 R0 R1 R2 S0 S1 S2 T0 T1 T2 U0 U1 U2 V0 V1 V2 W0 W1 W2 X0 X1 X2 Y0 Y1 Y2 Z0 Z1 Z2
Answers: A0 A1 A2 B0 B1 B2 C0 C1 C2 D0 D1 D2 E0 E1 E2 F0 F1 F2 G0 G1 G2 H0 H1 H2 I0 I1 I2 J0 J1 J2 K0 K1 K2 L0 L1 L2 M0 M1 M2 N0 N1 N2 O0 O1 O2 P0 P1 P2 Q0 Q1 Q2 R0 R1 R2 S0 S1 S2 T0 T1 T2 U0 U1 U2 V0 V1 V2 W0 W1 W2 X0 X1 X2 Y0 Y1 Y2 Z0 Z1 Z2
78 Tests = 3 versions x 26 variations: Each of the 26 variations (A, B, ...) represents a different random selection of questions taken from the study guide.The 3 versions (0,1,..) all have the same questions but in different order and with different numerical inputs. Unless all students take version "0" it is best to reserve it for the instructor because the questions are grouped according to the order in which they appear on the study guide.
Links: Quizbank/Instructions Study guide file:QB-calcPhyEMqAll-c11.pdf
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c11 A0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.01 i + 5.35 j + 2.07 k) x 104 m/s?
- a) 1.192E-13 N
- b) 1.311E-13 N
- c) 1.442E-13 N
- d) 1.586E-13 N
- e) 1.745E-13 N
2) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- a) 4.784E-06 s
- b) 5.262E-06 s
- c) 5.788E-06 s
- d) 6.367E-06 s
- e) 7.004E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
4) A 42 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.48 T. What current is required to maintain this balance?
- a) 2.812E-01 A
- b) 3.093E-01 A
- c) 3.403E-01 A
- d) 3.743E-01 A
- e) 4.117E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- a) 1.131E+00 N/m
- b) 1.244E+00 N/m
- c) 1.368E+00 N/m
- d) 1.505E+00 N/m
- e) 1.655E+00 N/m
6) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.523 T?
- a) 2.699E-06 N m
- b) 2.969E-06 N m
- c) 3.266E-06 N m
- d) 3.593E-06 N m
- e) 3.952E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.060E+06 m/s
- b) 1.166E+06 m/s
- c) 1.282E+06 m/s
- d) 1.411E+06 m/s
- e) 1.552E+06 m/s
- a) 8.660E-06 V
- b) 9.526E-06 V
- c) 1.048E-05 V
- d) 1.153E-05 V
- e) 1.268E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
c11 A1
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- a) 2.875E+00 MeV
- b) 3.162E+00 MeV
- c) 3.479E+00 MeV
- d) 3.827E+00 MeV
- e) 4.209E+00 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- a) 1.064E-13 N
- b) 1.171E-13 N
- c) 1.288E-13 N
- d) 1.417E-13 N
- e) 1.558E-13 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
5) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- a) 2.037E-01 A
- b) 2.241E-01 A
- c) 2.465E-01 A
- d) 2.712E-01 A
- e) 2.983E-01 A
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
7) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- a) 2.095E-06 s
- b) 2.305E-06 s
- c) 2.535E-06 s
- d) 2.789E-06 s
- e) 3.067E-06 s
9) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- a) 3.582E-07 N m
- b) 3.940E-07 N m
- c) 4.334E-07 N m
- d) 4.768E-07 N m
- e) 5.245E-07 N m
c11 A2
edit1) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- a) 6.534E+00 MeV
- b) 7.187E+00 MeV
- c) 7.906E+00 MeV
- d) 8.697E+00 MeV
- e) 9.566E+00 MeV
3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.746E+06 m/s
- b) 3.021E+06 m/s
- c) 3.323E+06 m/s
- d) 3.655E+06 m/s
- e) 4.020E+06 m/s
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
6) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
7) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- a) 1.510E+00 N/m
- b) 1.661E+00 N/m
- c) 1.827E+00 N/m
- d) 2.010E+00 N/m
- e) 2.211E+00 N/m
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- a) 1.828E-14 N
- b) 2.010E-14 N
- c) 2.211E-14 N
- d) 2.433E-14 N
- e) 2.676E-14 N
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
c11 B0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- a) 7.509E-14 N
- b) 8.259E-14 N
- c) 9.085E-14 N
- d) 9.994E-14 N
- e) 1.099E-13 N
2) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- a) 2.730E-06 s
- b) 3.003E-06 s
- c) 3.303E-06 s
- d) 3.633E-06 s
- e) 3.997E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
4) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- a) 7.056E-02 A
- b) 7.762E-02 A
- c) 8.538E-02 A
- d) 9.392E-02 A
- e) 1.033E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- a) 8.520E-01 N/m
- b) 9.372E-01 N/m
- c) 1.031E+00 N/m
- d) 1.134E+00 N/m
- e) 1.247E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.971E+05 m/s
- b) 9.868E+05 m/s
- c) 1.085E+06 m/s
- d) 1.194E+06 m/s
- e) 1.313E+06 m/s
- a) 1.193E-06 V
- b) 1.313E-06 V
- c) 1.444E-06 V
- d) 1.588E-06 V
- e) 1.747E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- a) 6.534E+00 MeV
- b) 7.187E+00 MeV
- c) 7.906E+00 MeV
- d) 8.697E+00 MeV
- e) 9.566E+00 MeV
c11 B1
edit1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- a) 4.096E+00 N/m
- b) 4.505E+00 N/m
- c) 4.956E+00 N/m
- d) 5.451E+00 N/m
- e) 5.996E+00 N/m
3) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- a) 6.080E-06 s
- b) 6.688E-06 s
- c) 7.356E-06 s
- d) 8.092E-06 s
- e) 8.901E-06 s
4) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?
- a) 1.022E-06 N m
- b) 1.124E-06 N m
- c) 1.236E-06 N m
- d) 1.360E-06 N m
- e) 1.496E-06 N m
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 3.132E+05 m/s
- b) 3.445E+05 m/s
- c) 3.790E+05 m/s
- d) 4.169E+05 m/s
- e) 4.585E+05 m/s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- a) 2.853E+00 MeV
- b) 3.139E+00 MeV
- c) 3.453E+00 MeV
- d) 3.798E+00 MeV
- e) 4.178E+00 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- a) 2.561E-07 s
- b) 2.817E-07 s
- c) 3.099E-07 s
- d) 3.409E-07 s
- e) 3.750E-07 s
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- a) 1.757E-14 N
- b) 1.933E-14 N
- c) 2.126E-14 N
- d) 2.339E-14 N
- e) 2.573E-14 N
c11 B2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
3) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
4) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
5) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- a) 6.534E+00 MeV
- b) 7.187E+00 MeV
- c) 7.906E+00 MeV
- d) 8.697E+00 MeV
- e) 9.566E+00 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- a) 2.819E-07 s
- b) 3.101E-07 s
- c) 3.411E-07 s
- d) 3.752E-07 s
- e) 4.128E-07 s
8) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- a) 4.784E-06 s
- b) 5.262E-06 s
- c) 5.788E-06 s
- d) 6.367E-06 s
- e) 7.004E-06 s
- a) 9.015E-06 V
- b) 9.916E-06 V
- c) 1.091E-05 V
- d) 1.200E-05 V
- e) 1.320E-05 V
c11 C0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- a) 2.576E-14 N
- b) 2.834E-14 N
- c) 3.117E-14 N
- d) 3.429E-14 N
- e) 3.772E-14 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- a) 2.189E-05 s
- b) 2.408E-05 s
- c) 2.649E-05 s
- d) 2.914E-05 s
- e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- a) 1.644E-01 A
- b) 1.808E-01 A
- c) 1.989E-01 A
- d) 2.188E-01 A
- e) 2.406E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- a) 4.096E+00 N/m
- b) 4.505E+00 N/m
- c) 4.956E+00 N/m
- d) 5.451E+00 N/m
- e) 5.996E+00 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- a) 1.866E-07 N m
- b) 2.052E-07 N m
- c) 2.258E-07 N m
- d) 2.484E-07 N m
- e) 2.732E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.504E+06 m/s
- b) 1.655E+06 m/s
- c) 1.820E+06 m/s
- d) 2.002E+06 m/s
- e) 2.202E+06 m/s
- a) 9.015E-06 V
- b) 9.916E-06 V
- c) 1.091E-05 V
- d) 1.200E-05 V
- e) 1.320E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?
- a) 5.342E+00 MeV
- b) 5.877E+00 MeV
- c) 6.464E+00 MeV
- d) 7.111E+00 MeV
- e) 7.822E+00 MeV
c11 C1
edit1) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- a) 4.908E+00 N/m
- b) 5.399E+00 N/m
- c) 5.939E+00 N/m
- d) 6.533E+00 N/m
- e) 7.186E+00 N/m
2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- a) 6.080E-06 s
- b) 6.688E-06 s
- c) 7.356E-06 s
- d) 8.092E-06 s
- e) 8.901E-06 s
- a) 8.660E-06 V
- b) 9.526E-06 V
- c) 1.048E-05 V
- d) 1.153E-05 V
- e) 1.268E-05 V
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
6) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- a) 1.174E+00 A
- b) 1.291E+00 A
- c) 1.420E+00 A
- d) 1.562E+00 A
- e) 1.719E+00 A
7) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 8.608E-01 MeV
- b) 9.468E-01 MeV
- c) 1.042E+00 MeV
- d) 1.146E+00 MeV
- e) 1.260E+00 MeV
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- a) 4.419E-14 N
- b) 4.861E-14 N
- c) 5.347E-14 N
- d) 5.882E-14 N
- e) 6.470E-14 N
c11 C2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 8.608E-01 MeV
- b) 9.468E-01 MeV
- c) 1.042E+00 MeV
- d) 1.146E+00 MeV
- e) 1.260E+00 MeV
2) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- a) 8.520E-01 N/m
- b) 9.372E-01 N/m
- c) 1.031E+00 N/m
- d) 1.134E+00 N/m
- e) 1.247E+00 N/m
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.971E+05 m/s
- b) 9.868E+05 m/s
- c) 1.085E+06 m/s
- d) 1.194E+06 m/s
- e) 1.313E+06 m/s
5) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- a) 1.644E-01 A
- b) 1.808E-01 A
- c) 1.989E-01 A
- d) 2.188E-01 A
- e) 2.406E-01 A
6) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
- a) 7.153E-07 V
- b) 7.869E-07 V
- c) 8.655E-07 V
- d) 9.521E-07 V
- e) 1.047E-06 V
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
9) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
c11 D0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
2) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- a) 7.793E-06 s
- b) 8.572E-06 s
- c) 9.429E-06 s
- d) 1.037E-05 s
- e) 1.141E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- a) 2.095E-06 s
- b) 2.305E-06 s
- c) 2.535E-06 s
- d) 2.789E-06 s
- e) 3.067E-06 s
4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- a) 3.106E-01 A
- b) 3.416E-01 A
- c) 3.758E-01 A
- d) 4.134E-01 A
- e) 4.547E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- a) 5.805E-08 N m
- b) 6.386E-08 N m
- c) 7.024E-08 N m
- d) 7.727E-08 N m
- e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
- a) 7.153E-07 V
- b) 7.869E-07 V
- c) 8.655E-07 V
- d) 9.521E-07 V
- e) 1.047E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- a) 1.004E+00 MeV
- b) 1.104E+00 MeV
- c) 1.215E+00 MeV
- d) 1.336E+00 MeV
- e) 1.470E+00 MeV
c11 D1
edit1) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
2) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 4.629E-07 s
- b) 5.092E-07 s
- c) 5.601E-07 s
- d) 6.161E-07 s
- e) 6.777E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- a) 3.432E-01 A
- b) 3.775E-01 A
- c) 4.152E-01 A
- d) 4.568E-01 A
- e) 5.024E-01 A
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?
- a) 8.881E+00 MeV
- b) 9.769E+00 MeV
- c) 1.075E+01 MeV
- d) 1.182E+01 MeV
- e) 1.300E+01 MeV
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
8) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- a) 5.205E-01 N/m
- b) 5.725E-01 N/m
- c) 6.297E-01 N/m
- d) 6.927E-01 N/m
- e) 7.620E-01 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- a) 2.576E-14 N
- b) 2.834E-14 N
- c) 3.117E-14 N
- d) 3.429E-14 N
- e) 3.772E-14 N
c11 D2
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- a) 2.222E-14 N
- b) 2.444E-14 N
- c) 2.688E-14 N
- d) 2.957E-14 N
- e) 3.253E-14 N
2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- a) 3.106E-01 A
- b) 3.416E-01 A
- c) 3.758E-01 A
- d) 4.134E-01 A
- e) 4.547E-01 A
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 4.878E-07 s
- b) 5.366E-07 s
- c) 5.903E-07 s
- d) 6.493E-07 s
- e) 7.143E-07 s
- a) 1.375E-05 V
- b) 1.513E-05 V
- c) 1.664E-05 V
- d) 1.831E-05 V
- e) 2.014E-05 V
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- a) 1.131E+00 N/m
- b) 1.244E+00 N/m
- c) 1.368E+00 N/m
- d) 1.505E+00 N/m
- e) 1.655E+00 N/m
6) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- a) 1.062E-05 s
- b) 1.168E-05 s
- c) 1.285E-05 s
- d) 1.413E-05 s
- e) 1.555E-05 s
7) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
c11 E0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 7.270E-07 s
- b) 7.997E-07 s
- c) 8.797E-07 s
- d) 9.676E-07 s
- e) 1.064E-06 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- a) 3.999E-01 A
- b) 4.398E-01 A
- c) 4.838E-01 A
- d) 5.322E-01 A
- e) 5.854E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?
- a) 1.001E+00 N/m
- b) 1.101E+00 N/m
- c) 1.211E+00 N/m
- d) 1.332E+00 N/m
- e) 1.465E+00 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- a) 1.866E-07 N m
- b) 2.052E-07 N m
- c) 2.258E-07 N m
- d) 2.484E-07 N m
- e) 2.732E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.971E+05 m/s
- b) 9.868E+05 m/s
- c) 1.085E+06 m/s
- d) 1.194E+06 m/s
- e) 1.313E+06 m/s
- a) 1.209E-06 V
- b) 1.329E-06 V
- c) 1.462E-06 V
- d) 1.609E-06 V
- e) 1.770E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- a) 1.336E+01 MeV
- b) 1.470E+01 MeV
- c) 1.617E+01 MeV
- d) 1.779E+01 MeV
- e) 1.957E+01 MeV
c11 E1
edit1) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- a) 8.491E+00 MeV
- b) 9.340E+00 MeV
- c) 1.027E+01 MeV
- d) 1.130E+01 MeV
- e) 1.243E+01 MeV
- a) 9.015E-06 V
- b) 9.916E-06 V
- c) 1.091E-05 V
- d) 1.200E-05 V
- e) 1.320E-05 V
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 7.270E-07 s
- b) 7.997E-07 s
- c) 8.797E-07 s
- d) 9.676E-07 s
- e) 1.064E-06 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- a) 4.783E-14 N
- b) 5.262E-14 N
- c) 5.788E-14 N
- d) 6.367E-14 N
- e) 7.003E-14 N
9) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
c11 E2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- a) 5.610E-07 N m
- b) 6.171E-07 N m
- c) 6.788E-07 N m
- d) 7.467E-07 N m
- e) 8.213E-07 N m
3) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- a) 7.793E-06 s
- b) 8.572E-06 s
- c) 9.429E-06 s
- d) 1.037E-05 s
- e) 1.141E-05 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- a) 2.596E-01 A
- b) 2.855E-01 A
- c) 3.141E-01 A
- d) 3.455E-01 A
- e) 3.801E-01 A
- a) 1.080E-06 V
- b) 1.188E-06 V
- c) 1.306E-06 V
- d) 1.437E-06 V
- e) 1.581E-06 V
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- a) 2.222E-14 N
- b) 2.444E-14 N
- c) 2.688E-14 N
- d) 2.957E-14 N
- e) 3.253E-14 N
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.676E+06 m/s
- b) 1.843E+06 m/s
- c) 2.028E+06 m/s
- d) 2.230E+06 m/s
- e) 2.453E+06 m/s
9) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- a) 1.062E+00 N/m
- b) 1.168E+00 N/m
- c) 1.285E+00 N/m
- d) 1.413E+00 N/m
- e) 1.555E+00 N/m
c11 F0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- a) 1.386E-13 N
- b) 1.524E-13 N
- c) 1.676E-13 N
- d) 1.844E-13 N
- e) 2.029E-13 N
2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- a) 4.453E-07 s
- b) 4.898E-07 s
- c) 5.388E-07 s
- d) 5.927E-07 s
- e) 6.519E-07 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- a) 2.596E-01 A
- b) 2.855E-01 A
- c) 3.141E-01 A
- d) 3.455E-01 A
- e) 3.801E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- a) 5.205E-01 N/m
- b) 5.725E-01 N/m
- c) 6.297E-01 N/m
- d) 6.927E-01 N/m
- e) 7.620E-01 N/m
6) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- a) 1.585E-07 N m
- b) 1.743E-07 N m
- c) 1.918E-07 N m
- d) 2.110E-07 N m
- e) 2.321E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 8.608E-01 MeV
- b) 9.468E-01 MeV
- c) 1.042E+00 MeV
- d) 1.146E+00 MeV
- e) 1.260E+00 MeV
c11 F1
edit1) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- a) 1.585E-07 N m
- b) 1.743E-07 N m
- c) 1.918E-07 N m
- d) 2.110E-07 N m
- e) 2.321E-07 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- a) 2.576E-14 N
- b) 2.834E-14 N
- c) 3.117E-14 N
- d) 3.429E-14 N
- e) 3.772E-14 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
4) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
6) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- a) 2.259E-01 A
- b) 2.485E-01 A
- c) 2.734E-01 A
- d) 3.007E-01 A
- e) 3.308E-01 A
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
- a) 1.080E-06 V
- b) 1.188E-06 V
- c) 1.306E-06 V
- d) 1.437E-06 V
- e) 1.581E-06 V
9) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s
c11 F2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- a) 4.783E-14 N
- b) 5.262E-14 N
- c) 5.788E-14 N
- d) 6.367E-14 N
- e) 7.003E-14 N
3) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- a) 4.963E-01 A
- b) 5.459E-01 A
- c) 6.005E-01 A
- d) 6.605E-01 A
- e) 7.266E-01 A
- a) 1.648E-06 V
- b) 1.813E-06 V
- c) 1.994E-06 V
- d) 2.194E-06 V
- e) 2.413E-06 V
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- a) 2.095E-06 s
- b) 2.305E-06 s
- c) 2.535E-06 s
- d) 2.789E-06 s
- e) 3.067E-06 s
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.676E+06 m/s
- b) 1.843E+06 m/s
- c) 2.028E+06 m/s
- d) 2.230E+06 m/s
- e) 2.453E+06 m/s
8) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
c11 G0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.01 i + 5.35 j + 2.07 k) x 104 m/s?
- a) 1.192E-13 N
- b) 1.311E-13 N
- c) 1.442E-13 N
- d) 1.586E-13 N
- e) 1.745E-13 N
2) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- a) 5.560E-06 s
- b) 6.116E-06 s
- c) 6.728E-06 s
- d) 7.401E-06 s
- e) 8.141E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- a) 3.999E-01 A
- b) 4.398E-01 A
- c) 4.838E-01 A
- d) 5.322E-01 A
- e) 5.854E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- a) 1.062E+00 N/m
- b) 1.168E+00 N/m
- c) 1.285E+00 N/m
- d) 1.413E+00 N/m
- e) 1.555E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- a) 7.629E-07 N m
- b) 8.392E-07 N m
- c) 9.232E-07 N m
- d) 1.015E-06 N m
- e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.092E+05 m/s
- b) 8.901E+05 m/s
- c) 9.791E+05 m/s
- d) 1.077E+06 m/s
- e) 1.185E+06 m/s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
c11 G1
edit1) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- a) 1.644E-01 A
- b) 1.808E-01 A
- c) 1.989E-01 A
- d) 2.188E-01 A
- e) 2.406E-01 A
- a) 6.795E-06 V
- b) 7.475E-06 V
- c) 8.222E-06 V
- d) 9.045E-06 V
- e) 9.949E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- a) 4.419E-14 N
- b) 4.861E-14 N
- c) 5.347E-14 N
- d) 5.882E-14 N
- e) 6.470E-14 N
4) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- a) 1.336E+01 MeV
- b) 1.470E+01 MeV
- c) 1.617E+01 MeV
- d) 1.779E+01 MeV
- e) 1.957E+01 MeV
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
8) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.971E+05 m/s
- b) 9.868E+05 m/s
- c) 1.085E+06 m/s
- d) 1.194E+06 m/s
- e) 1.313E+06 m/s
c11 G2
edit1) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- a) 2.596E-01 A
- b) 2.855E-01 A
- c) 3.141E-01 A
- d) 3.455E-01 A
- e) 3.801E-01 A
2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 1.940E-06 s
- b) 2.134E-06 s
- c) 2.347E-06 s
- d) 2.582E-06 s
- e) 2.840E-06 s
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.36 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.25 i + 7.71 j + 2.91 k) x 104 m/s?
- a) 8.890E-14 N
- b) 9.779E-14 N
- c) 1.076E-13 N
- d) 1.183E-13 N
- e) 1.302E-13 N
5) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- a) 1.585E-07 N m
- b) 1.743E-07 N m
- c) 1.918E-07 N m
- d) 2.110E-07 N m
- e) 2.321E-07 N m
6) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- a) 4.908E+00 N/m
- b) 5.399E+00 N/m
- c) 5.939E+00 N/m
- d) 6.533E+00 N/m
- e) 7.186E+00 N/m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 3.132E+05 m/s
- b) 3.445E+05 m/s
- c) 3.790E+05 m/s
- d) 4.169E+05 m/s
- e) 4.585E+05 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.378 m and a magneticfield of 0.835 T. What is their maximum kinetic energy?
- a) 4.365E+00 MeV
- b) 4.801E+00 MeV
- c) 5.281E+00 MeV
- d) 5.809E+00 MeV
- e) 6.390E+00 MeV
c11 H0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(4.96 i + 6.81 j + 8.66 k) x 104 m/s?
- a) 9.727E-14 N
- b) 1.070E-13 N
- c) 1.177E-13 N
- d) 1.295E-13 N
- e) 1.424E-13 N
2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- a) 6.080E-06 s
- b) 6.688E-06 s
- c) 7.356E-06 s
- d) 8.092E-06 s
- e) 8.901E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- a) 2.596E-01 A
- b) 2.855E-01 A
- c) 3.141E-01 A
- d) 3.455E-01 A
- e) 3.801E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- a) 1.510E+00 N/m
- b) 1.661E+00 N/m
- c) 1.827E+00 N/m
- d) 2.010E+00 N/m
- e) 2.211E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- a) 7.629E-07 N m
- b) 8.392E-07 N m
- c) 9.232E-07 N m
- d) 1.015E-06 N m
- e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.362E+06 m/s
- b) 1.498E+06 m/s
- c) 1.647E+06 m/s
- d) 1.812E+06 m/s
- e) 1.993E+06 m/s
- a) 7.202E-06 V
- b) 7.922E-06 V
- c) 8.714E-06 V
- d) 9.586E-06 V
- e) 1.054E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- a) 5.798E+00 MeV
- b) 6.377E+00 MeV
- c) 7.015E+00 MeV
- d) 7.717E+00 MeV
- e) 8.488E+00 MeV
c11 H1
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
- a) 1.648E-06 V
- b) 1.813E-06 V
- c) 1.994E-06 V
- d) 2.194E-06 V
- e) 2.413E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
4) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s
5) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
7) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85° from its original direction. How much time did it spend in that magnetic field?
- a) 1.627E-06 s
- b) 1.790E-06 s
- c) 1.969E-06 s
- d) 2.166E-06 s
- e) 2.382E-06 s
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
c11 H2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- a) 3.245E-07 s
- b) 3.569E-07 s
- c) 3.926E-07 s
- d) 4.319E-07 s
- e) 4.751E-07 s
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- a) 2.853E+00 MeV
- b) 3.139E+00 MeV
- c) 3.453E+00 MeV
- d) 3.798E+00 MeV
- e) 4.178E+00 MeV
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- a) 2.222E-14 N
- b) 2.444E-14 N
- c) 2.688E-14 N
- d) 2.957E-14 N
- e) 3.253E-14 N
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- a) 1.062E+00 N/m
- b) 1.168E+00 N/m
- c) 1.285E+00 N/m
- d) 1.413E+00 N/m
- e) 1.555E+00 N/m
6) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- a) 1.141E-05 s
- b) 1.255E-05 s
- c) 1.381E-05 s
- d) 1.519E-05 s
- e) 1.671E-05 s
7) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- a) 4.963E-01 A
- b) 5.459E-01 A
- c) 6.005E-01 A
- d) 6.605E-01 A
- e) 7.266E-01 A
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.671E+06 m/s
- b) 1.838E+06 m/s
- c) 2.022E+06 m/s
- d) 2.225E+06 m/s
- e) 2.447E+06 m/s
9) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- a) 1.903E-07 N m
- b) 2.093E-07 N m
- c) 2.302E-07 N m
- d) 2.532E-07 N m
- e) 2.785E-07 N m
c11 I0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.36 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.25 i + 7.71 j + 2.91 k) x 104 m/s?
- a) 8.890E-14 N
- b) 9.779E-14 N
- c) 1.076E-13 N
- d) 1.183E-13 N
- e) 1.302E-13 N
2) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- a) 7.793E-06 s
- b) 8.572E-06 s
- c) 9.429E-06 s
- d) 1.037E-05 s
- e) 1.141E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- a) 3.432E-01 A
- b) 3.775E-01 A
- c) 4.152E-01 A
- d) 4.568E-01 A
- e) 5.024E-01 A
5) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
6) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- a) 5.610E-07 N m
- b) 6.171E-07 N m
- c) 6.788E-07 N m
- d) 7.467E-07 N m
- e) 8.213E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.971E+05 m/s
- b) 9.868E+05 m/s
- c) 1.085E+06 m/s
- d) 1.194E+06 m/s
- e) 1.313E+06 m/s
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- a) 2.853E+00 MeV
- b) 3.139E+00 MeV
- c) 3.453E+00 MeV
- d) 3.798E+00 MeV
- e) 4.178E+00 MeV
c11 I1
edit- a) 7.202E-06 V
- b) 7.922E-06 V
- c) 8.714E-06 V
- d) 9.586E-06 V
- e) 1.054E-05 V
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.554E+05 m/s
- b) 6.110E+05 m/s
- c) 6.720E+05 m/s
- d) 7.393E+05 m/s
- e) 8.132E+05 m/s
3) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- a) 2.697E+00 N/m
- b) 2.967E+00 N/m
- c) 3.263E+00 N/m
- d) 3.590E+00 N/m
- e) 3.948E+00 N/m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
6) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- a) 2.730E-06 s
- b) 3.003E-06 s
- c) 3.303E-06 s
- d) 3.633E-06 s
- e) 3.997E-06 s
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 2.280E-07 s
- b) 2.508E-07 s
- c) 2.759E-07 s
- d) 3.035E-07 s
- e) 3.339E-07 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- a) 1.757E-14 N
- b) 1.933E-14 N
- c) 2.126E-14 N
- d) 2.339E-14 N
- e) 2.573E-14 N
9) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- a) 1.476E-06 N m
- b) 1.624E-06 N m
- c) 1.786E-06 N m
- d) 1.965E-06 N m
- e) 2.162E-06 N m
c11 I2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
3) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
4) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- a) 1.141E-05 s
- b) 1.255E-05 s
- c) 1.381E-05 s
- d) 1.519E-05 s
- e) 1.671E-05 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- a) 2.853E+00 MeV
- b) 3.139E+00 MeV
- c) 3.453E+00 MeV
- d) 3.798E+00 MeV
- e) 4.178E+00 MeV
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- a) 1.828E-14 N
- b) 2.010E-14 N
- c) 2.211E-14 N
- d) 2.433E-14 N
- e) 2.676E-14 N
7) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
8) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- a) 3.106E-01 A
- b) 3.416E-01 A
- c) 3.758E-01 A
- d) 4.134E-01 A
- e) 4.547E-01 A
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
c11 J0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- a) 5.296E-14 N
- b) 5.826E-14 N
- c) 6.408E-14 N
- d) 7.049E-14 N
- e) 7.754E-14 N
2) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 2.280E-07 s
- b) 2.508E-07 s
- c) 2.759E-07 s
- d) 3.035E-07 s
- e) 3.339E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- a) 3.432E-01 A
- b) 3.775E-01 A
- c) 4.152E-01 A
- d) 4.568E-01 A
- e) 5.024E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- a) 1.131E+00 N/m
- b) 1.244E+00 N/m
- c) 1.368E+00 N/m
- d) 1.505E+00 N/m
- e) 1.655E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- a) 7.629E-07 N m
- b) 8.392E-07 N m
- c) 9.232E-07 N m
- d) 1.015E-06 N m
- e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 1.746E-06 V
- b) 1.921E-06 V
- c) 2.113E-06 V
- d) 2.324E-06 V
- e) 2.557E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- a) 6.029E+00 MeV
- b) 6.631E+00 MeV
- c) 7.295E+00 MeV
- d) 8.024E+00 MeV
- e) 8.827E+00 MeV
c11 J1
edit1) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- a) 3.432E-01 A
- b) 3.775E-01 A
- c) 4.152E-01 A
- d) 4.568E-01 A
- e) 5.024E-01 A
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- a) 4.096E+00 N/m
- b) 4.505E+00 N/m
- c) 4.956E+00 N/m
- d) 5.451E+00 N/m
- e) 5.996E+00 N/m
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
4) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?
- a) 1.022E-06 N m
- b) 1.124E-06 N m
- c) 1.236E-06 N m
- d) 1.360E-06 N m
- e) 1.496E-06 N m
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.070E+06 m/s
- b) 1.177E+06 m/s
- c) 1.295E+06 m/s
- d) 1.424E+06 m/s
- e) 1.566E+06 m/s
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
7) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- a) 2.189E-05 s
- b) 2.408E-05 s
- c) 2.649E-05 s
- d) 2.914E-05 s
- e) 3.205E-05 s
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- a) 4.105E-07 s
- b) 4.515E-07 s
- c) 4.967E-07 s
- d) 5.464E-07 s
- e) 6.010E-07 s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
c11 J2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- a) 5.610E-07 N m
- b) 6.171E-07 N m
- c) 6.788E-07 N m
- d) 7.467E-07 N m
- e) 8.213E-07 N m
3) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- a) 1.174E+00 A
- b) 1.291E+00 A
- c) 1.420E+00 A
- d) 1.562E+00 A
- e) 1.719E+00 A
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- a) 1.064E-13 N
- b) 1.171E-13 N
- c) 1.288E-13 N
- d) 1.417E-13 N
- e) 1.558E-13 N
5) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- a) 1.141E-05 s
- b) 1.255E-05 s
- c) 1.381E-05 s
- d) 1.519E-05 s
- e) 1.671E-05 s
6) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
- a) 1.193E-06 V
- b) 1.313E-06 V
- c) 1.444E-06 V
- d) 1.588E-06 V
- e) 1.747E-06 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.070E+06 m/s
- b) 1.177E+06 m/s
- c) 1.295E+06 m/s
- d) 1.424E+06 m/s
- e) 1.566E+06 m/s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- a) 6.029E+00 MeV
- b) 6.631E+00 MeV
- c) 7.295E+00 MeV
- d) 8.024E+00 MeV
- e) 8.827E+00 MeV
c11 K0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- a) 1.386E-13 N
- b) 1.524E-13 N
- c) 1.676E-13 N
- d) 1.844E-13 N
- e) 2.029E-13 N
2) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- a) 1.062E-05 s
- b) 1.168E-05 s
- c) 1.285E-05 s
- d) 1.413E-05 s
- e) 1.555E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
4) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
c11 K1
edit1) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- a) 5.560E-06 s
- b) 6.116E-06 s
- c) 6.728E-06 s
- d) 7.401E-06 s
- e) 8.141E-06 s
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- a) 5.296E-14 N
- b) 5.826E-14 N
- c) 6.408E-14 N
- d) 7.049E-14 N
- e) 7.754E-14 N
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 7.270E-07 s
- b) 7.997E-07 s
- c) 8.797E-07 s
- d) 9.676E-07 s
- e) 1.064E-06 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
- a) 6.100E-06 V
- b) 6.710E-06 V
- c) 7.381E-06 V
- d) 8.120E-06 V
- e) 8.931E-06 V
7) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
8) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.671E+06 m/s
- b) 1.838E+06 m/s
- c) 2.022E+06 m/s
- d) 2.225E+06 m/s
- e) 2.447E+06 m/s
c11 K2
edit- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- a) 1.828E-14 N
- b) 2.010E-14 N
- c) 2.211E-14 N
- d) 2.433E-14 N
- e) 2.676E-14 N
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
5) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.671E+06 m/s
- b) 1.838E+06 m/s
- c) 2.022E+06 m/s
- d) 2.225E+06 m/s
- e) 2.447E+06 m/s
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- a) 1.004E+00 MeV
- b) 1.104E+00 MeV
- c) 1.215E+00 MeV
- d) 1.336E+00 MeV
- e) 1.470E+00 MeV
8) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
9) A 42 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.48 T. What current is required to maintain this balance?
- a) 2.812E-01 A
- b) 3.093E-01 A
- c) 3.403E-01 A
- d) 3.743E-01 A
- e) 4.117E-01 A
c11 L0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- a) 4.419E-14 N
- b) 4.861E-14 N
- c) 5.347E-14 N
- d) 5.882E-14 N
- e) 6.470E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
6) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- a) 1.903E-07 N m
- b) 2.093E-07 N m
- c) 2.302E-07 N m
- d) 2.532E-07 N m
- e) 2.785E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
c11 L1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- a) 1.386E-13 N
- b) 1.524E-13 N
- c) 1.676E-13 N
- d) 1.844E-13 N
- e) 2.029E-13 N
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.070E+06 m/s
- b) 1.177E+06 m/s
- c) 1.295E+06 m/s
- d) 1.424E+06 m/s
- e) 1.566E+06 m/s
- a) 8.660E-06 V
- b) 9.526E-06 V
- c) 1.048E-05 V
- d) 1.153E-05 V
- e) 1.268E-05 V
5) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- a) 2.875E+00 MeV
- b) 3.162E+00 MeV
- c) 3.479E+00 MeV
- d) 3.827E+00 MeV
- e) 4.209E+00 MeV
7) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- a) 2.009E-07 N m
- b) 2.210E-07 N m
- c) 2.431E-07 N m
- d) 2.674E-07 N m
- e) 2.941E-07 N m
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- a) 4.453E-07 s
- b) 4.898E-07 s
- c) 5.388E-07 s
- d) 5.927E-07 s
- e) 6.519E-07 s
9) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- a) 2.037E-01 A
- b) 2.241E-01 A
- c) 2.465E-01 A
- d) 2.712E-01 A
- e) 2.983E-01 A
c11 L2
edit1) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- a) 7.898E-07 N m
- b) 8.688E-07 N m
- c) 9.557E-07 N m
- d) 1.051E-06 N m
- e) 1.156E-06 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- a) 1.757E-14 N
- b) 1.933E-14 N
- c) 2.126E-14 N
- d) 2.339E-14 N
- e) 2.573E-14 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
5) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- a) 7.056E-02 A
- b) 7.762E-02 A
- c) 8.538E-02 A
- d) 9.392E-02 A
- e) 1.033E-01 A
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 2.280E-07 s
- b) 2.508E-07 s
- c) 2.759E-07 s
- d) 3.035E-07 s
- e) 3.339E-07 s
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- a) 1.004E+00 MeV
- b) 1.104E+00 MeV
- c) 1.215E+00 MeV
- d) 1.336E+00 MeV
- e) 1.470E+00 MeV
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?
- a) 1.001E+00 N/m
- b) 1.101E+00 N/m
- c) 1.211E+00 N/m
- d) 1.332E+00 N/m
- e) 1.465E+00 N/m
9) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
c11 M0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
2) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- a) 2.899E-05 s
- b) 3.189E-05 s
- c) 3.508E-05 s
- d) 3.859E-05 s
- e) 4.244E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
4) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- a) 1.174E+00 A
- b) 1.291E+00 A
- c) 1.420E+00 A
- d) 1.562E+00 A
- e) 1.719E+00 A
5) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
6) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- a) 1.476E-06 N m
- b) 1.624E-06 N m
- c) 1.786E-06 N m
- d) 1.965E-06 N m
- e) 2.162E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
c11 M1
edit1) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- a) 4.908E+00 N/m
- b) 5.399E+00 N/m
- c) 5.939E+00 N/m
- d) 6.533E+00 N/m
- e) 7.186E+00 N/m
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
4) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- a) 2.875E+00 MeV
- b) 3.162E+00 MeV
- c) 3.479E+00 MeV
- d) 3.827E+00 MeV
- e) 4.209E+00 MeV
6) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- a) 1.113E-07 N m
- b) 1.224E-07 N m
- c) 1.347E-07 N m
- d) 1.481E-07 N m
- e) 1.629E-07 N m
7) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- a) 1.956E-01 A
- b) 2.152E-01 A
- c) 2.367E-01 A
- d) 2.604E-01 A
- e) 2.864E-01 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- a) 4.105E-07 s
- b) 4.515E-07 s
- c) 4.967E-07 s
- d) 5.464E-07 s
- e) 6.010E-07 s
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- a) 5.296E-14 N
- b) 5.826E-14 N
- c) 6.408E-14 N
- d) 7.049E-14 N
- e) 7.754E-14 N
c11 M2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.554E+05 m/s
- b) 6.110E+05 m/s
- c) 6.720E+05 m/s
- d) 7.393E+05 m/s
- e) 8.132E+05 m/s
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- a) 2.561E-07 s
- b) 2.817E-07 s
- c) 3.099E-07 s
- d) 3.409E-07 s
- e) 3.750E-07 s
6) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- a) 2.847E+00 N/m
- b) 3.132E+00 N/m
- c) 3.445E+00 N/m
- d) 3.789E+00 N/m
- e) 4.168E+00 N/m
7) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
8) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- a) 6.080E-06 s
- b) 6.688E-06 s
- c) 7.356E-06 s
- d) 8.092E-06 s
- e) 8.901E-06 s
9) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
c11 N0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(4.96 i + 6.81 j + 8.66 k) x 104 m/s?
- a) 9.727E-14 N
- b) 1.070E-13 N
- c) 1.177E-13 N
- d) 1.295E-13 N
- e) 1.424E-13 N
2) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- a) 1.644E-01 A
- b) 1.808E-01 A
- c) 1.989E-01 A
- d) 2.188E-01 A
- e) 2.406E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- a) 1.062E+00 N/m
- b) 1.168E+00 N/m
- c) 1.285E+00 N/m
- d) 1.413E+00 N/m
- e) 1.555E+00 N/m
6) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.070E+06 m/s
- b) 1.177E+06 m/s
- c) 1.295E+06 m/s
- d) 1.424E+06 m/s
- e) 1.566E+06 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
c11 N1
edit1) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- a) 4.419E-14 N
- b) 4.861E-14 N
- c) 5.347E-14 N
- d) 5.882E-14 N
- e) 6.470E-14 N
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.746E+06 m/s
- b) 3.021E+06 m/s
- c) 3.323E+06 m/s
- d) 3.655E+06 m/s
- e) 4.020E+06 m/s
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- a) 5.205E-01 N/m
- b) 5.725E-01 N/m
- c) 6.297E-01 N/m
- d) 6.927E-01 N/m
- e) 7.620E-01 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- a) 1.866E-07 N m
- b) 2.052E-07 N m
- c) 2.258E-07 N m
- d) 2.484E-07 N m
- e) 2.732E-07 N m
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
- a) 1.322E-06 V
- b) 1.454E-06 V
- c) 1.600E-06 V
- d) 1.759E-06 V
- e) 1.935E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- a) 5.798E+00 MeV
- b) 6.377E+00 MeV
- c) 7.015E+00 MeV
- d) 7.717E+00 MeV
- e) 8.488E+00 MeV
c11 N2
edit1) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.676E+06 m/s
- b) 1.843E+06 m/s
- c) 2.028E+06 m/s
- d) 2.230E+06 m/s
- e) 2.453E+06 m/s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
6) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
c11 O0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- a) 1.757E-14 N
- b) 1.933E-14 N
- c) 2.126E-14 N
- d) 2.339E-14 N
- e) 2.573E-14 N
2) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- a) 2.847E+00 N/m
- b) 3.132E+00 N/m
- c) 3.445E+00 N/m
- d) 3.789E+00 N/m
- e) 4.168E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- a) 5.805E-08 N m
- b) 6.386E-08 N m
- c) 7.024E-08 N m
- d) 7.727E-08 N m
- e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.829E+05 m/s
- b) 5.312E+05 m/s
- c) 5.843E+05 m/s
- d) 6.427E+05 m/s
- e) 7.070E+05 m/s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.449 m and a magneticfield of 0.81 T. What is their maximum kinetic energy?
- a) 5.795E+00 MeV
- b) 6.374E+00 MeV
- c) 7.012E+00 MeV
- d) 7.713E+00 MeV
- e) 8.484E+00 MeV
c11 O1
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 9.223E+05 m/s
- b) 1.015E+06 m/s
- c) 1.116E+06 m/s
- d) 1.228E+06 m/s
- e) 1.350E+06 m/s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- a) 8.137E-07 s
- b) 8.951E-07 s
- c) 9.846E-07 s
- d) 1.083E-06 s
- e) 1.191E-06 s
3) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- a) 5.560E-06 s
- b) 6.116E-06 s
- c) 6.728E-06 s
- d) 7.401E-06 s
- e) 8.141E-06 s
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- a) 1.004E+00 MeV
- b) 1.104E+00 MeV
- c) 1.215E+00 MeV
- d) 1.336E+00 MeV
- e) 1.470E+00 MeV
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
6) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- a) 3.582E-07 N m
- b) 3.940E-07 N m
- c) 4.334E-07 N m
- d) 4.768E-07 N m
- e) 5.245E-07 N m
7) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- a) 4.419E-14 N
- b) 4.861E-14 N
- c) 5.347E-14 N
- d) 5.882E-14 N
- e) 6.470E-14 N
9) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- a) 1.174E+00 A
- b) 1.291E+00 A
- c) 1.420E+00 A
- d) 1.562E+00 A
- e) 1.719E+00 A
c11 O2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- a) 1.336E+01 MeV
- b) 1.470E+01 MeV
- c) 1.617E+01 MeV
- d) 1.779E+01 MeV
- e) 1.957E+01 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- a) 1.757E-14 N
- b) 1.933E-14 N
- c) 2.126E-14 N
- d) 2.339E-14 N
- e) 2.573E-14 N
3) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
5) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- a) 7.327E-06 s
- b) 8.060E-06 s
- c) 8.865E-06 s
- d) 9.752E-06 s
- e) 1.073E-05 s
6) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
- a) 6.100E-06 V
- b) 6.710E-06 V
- c) 7.381E-06 V
- d) 8.120E-06 V
- e) 8.931E-06 V
8) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
c11 P0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- a) 2.189E-05 s
- b) 2.408E-05 s
- c) 2.649E-05 s
- d) 2.914E-05 s
- e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 2.280E-07 s
- b) 2.508E-07 s
- c) 2.759E-07 s
- d) 3.035E-07 s
- e) 3.339E-07 s
4) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- a) 3.648E+00 N/m
- b) 4.012E+00 N/m
- c) 4.414E+00 N/m
- d) 4.855E+00 N/m
- e) 5.341E+00 N/m
6) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- a) 2.009E-07 N m
- b) 2.210E-07 N m
- c) 2.431E-07 N m
- d) 2.674E-07 N m
- e) 2.941E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 3.132E+05 m/s
- b) 3.445E+05 m/s
- c) 3.790E+05 m/s
- d) 4.169E+05 m/s
- e) 4.585E+05 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
c11 P1
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- a) 4.453E-07 s
- b) 4.898E-07 s
- c) 5.388E-07 s
- d) 5.927E-07 s
- e) 6.519E-07 s
2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s
3) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- a) 1.174E+00 A
- b) 1.291E+00 A
- c) 1.420E+00 A
- d) 1.562E+00 A
- e) 1.719E+00 A
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
5) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
6) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- a) 1.510E+00 N/m
- b) 1.661E+00 N/m
- c) 1.827E+00 N/m
- d) 2.010E+00 N/m
- e) 2.211E+00 N/m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
8) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- a) 7.629E-07 N m
- b) 8.392E-07 N m
- c) 9.232E-07 N m
- d) 1.015E-06 N m
- e) 1.117E-06 N m
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
c11 P2
edit- a) 1.648E-06 V
- b) 1.813E-06 V
- c) 1.994E-06 V
- d) 2.194E-06 V
- e) 2.413E-06 V
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.060E+06 m/s
- b) 1.166E+06 m/s
- c) 1.282E+06 m/s
- d) 1.411E+06 m/s
- e) 1.552E+06 m/s
3) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- a) 2.819E-07 s
- b) 3.101E-07 s
- c) 3.411E-07 s
- d) 3.752E-07 s
- e) 4.128E-07 s
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
7) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- a) 1.062E-05 s
- b) 1.168E-05 s
- c) 1.285E-05 s
- d) 1.413E-05 s
- e) 1.555E-05 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- a) 1.828E-14 N
- b) 2.010E-14 N
- c) 2.211E-14 N
- d) 2.433E-14 N
- e) 2.676E-14 N
9) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- a) 1.510E+00 N/m
- b) 1.661E+00 N/m
- c) 1.827E+00 N/m
- d) 2.010E+00 N/m
- e) 2.211E+00 N/m
c11 Q0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
2) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?
- a) 3.805E-06 s
- b) 4.185E-06 s
- c) 4.604E-06 s
- d) 5.064E-06 s
- e) 5.571E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 4.629E-07 s
- b) 5.092E-07 s
- c) 5.601E-07 s
- d) 6.161E-07 s
- e) 6.777E-07 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- a) 5.205E-01 N/m
- b) 5.725E-01 N/m
- c) 6.297E-01 N/m
- d) 6.927E-01 N/m
- e) 7.620E-01 N/m
6) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.523 T?
- a) 2.699E-06 N m
- b) 2.969E-06 N m
- c) 3.266E-06 N m
- d) 3.593E-06 N m
- e) 3.952E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 3.132E+05 m/s
- b) 3.445E+05 m/s
- c) 3.790E+05 m/s
- d) 4.169E+05 m/s
- e) 4.585E+05 m/s
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
c11 Q1
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 4.791E-07 s
- b) 5.271E-07 s
- c) 5.798E-07 s
- d) 6.377E-07 s
- e) 7.015E-07 s
2) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
4) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 ° to a uniform magnetic fied of 0.415 T?
- a) 1.387E-06 N m
- b) 1.526E-06 N m
- c) 1.679E-06 N m
- d) 1.847E-06 N m
- e) 2.031E-06 N m
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- a) 5.798E+00 MeV
- b) 6.377E+00 MeV
- c) 7.015E+00 MeV
- d) 7.717E+00 MeV
- e) 8.488E+00 MeV
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
8) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.554E+05 m/s
- b) 6.110E+05 m/s
- c) 6.720E+05 m/s
- d) 7.393E+05 m/s
- e) 8.132E+05 m/s
c11 Q2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.554E+05 m/s
- b) 6.110E+05 m/s
- c) 6.720E+05 m/s
- d) 7.393E+05 m/s
- e) 8.132E+05 m/s
2) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- a) 4.784E-06 s
- b) 5.262E-06 s
- c) 5.788E-06 s
- d) 6.367E-06 s
- e) 7.004E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 1.940E-06 s
- b) 2.134E-06 s
- c) 2.347E-06 s
- d) 2.582E-06 s
- e) 2.840E-06 s
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- a) 6.029E+00 MeV
- b) 6.631E+00 MeV
- c) 7.295E+00 MeV
- d) 8.024E+00 MeV
- e) 8.827E+00 MeV
5) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
6) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- a) 1.956E-01 A
- b) 2.152E-01 A
- c) 2.367E-01 A
- d) 2.604E-01 A
- e) 2.864E-01 A
- a) 1.193E-06 V
- b) 1.313E-06 V
- c) 1.444E-06 V
- d) 1.588E-06 V
- e) 1.747E-06 V
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- a) 2.697E+00 N/m
- b) 2.967E+00 N/m
- c) 3.263E+00 N/m
- d) 3.590E+00 N/m
- e) 3.948E+00 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- a) 5.296E-14 N
- b) 5.826E-14 N
- c) 6.408E-14 N
- d) 7.049E-14 N
- e) 7.754E-14 N
c11 R0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- a) 7.509E-14 N
- b) 8.259E-14 N
- c) 9.085E-14 N
- d) 9.994E-14 N
- e) 1.099E-13 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- a) 2.189E-05 s
- b) 2.408E-05 s
- c) 2.649E-05 s
- d) 2.914E-05 s
- e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- a) 1.940E-06 s
- b) 2.134E-06 s
- c) 2.347E-06 s
- d) 2.582E-06 s
- e) 2.840E-06 s
4) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- a) 1.956E-01 A
- b) 2.152E-01 A
- c) 2.367E-01 A
- d) 2.604E-01 A
- e) 2.864E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
6) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- a) 1.336E+01 MeV
- b) 1.470E+01 MeV
- c) 1.617E+01 MeV
- d) 1.779E+01 MeV
- e) 1.957E+01 MeV
c11 R1
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 4.629E-07 s
- b) 5.092E-07 s
- c) 5.601E-07 s
- d) 6.161E-07 s
- e) 6.777E-07 s
3) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- a) 2.730E-06 s
- b) 3.003E-06 s
- c) 3.303E-06 s
- d) 3.633E-06 s
- e) 3.997E-06 s
4) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- a) 1.131E+00 N/m
- b) 1.244E+00 N/m
- c) 1.368E+00 N/m
- d) 1.505E+00 N/m
- e) 1.655E+00 N/m
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
7) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
8) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
c11 R2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- a) 2.095E-06 s
- b) 2.305E-06 s
- c) 2.535E-06 s
- d) 2.789E-06 s
- e) 3.067E-06 s
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
3) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
4) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- a) 5.610E-07 N m
- b) 6.171E-07 N m
- c) 6.788E-07 N m
- d) 7.467E-07 N m
- e) 8.213E-07 N m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
6) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
- a) 7.202E-06 V
- b) 7.922E-06 V
- c) 8.714E-06 V
- d) 9.586E-06 V
- e) 1.054E-05 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
9) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- a) 3.648E+00 N/m
- b) 4.012E+00 N/m
- c) 4.414E+00 N/m
- d) 4.855E+00 N/m
- e) 5.341E+00 N/m
c11 S0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.55 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.96 i + 1.68 j + 6.92 k) x 104 m/s?
- a) 4.179E-14 N
- b) 4.596E-14 N
- c) 5.056E-14 N
- d) 5.562E-14 N
- e) 6.118E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- a) 2.095E-06 s
- b) 2.305E-06 s
- c) 2.535E-06 s
- d) 2.789E-06 s
- e) 3.067E-06 s
4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- a) 3.840E-01 N/m
- b) 4.224E-01 N/m
- c) 4.647E-01 N/m
- d) 5.111E-01 N/m
- e) 5.623E-01 N/m
6) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- a) 2.009E-07 N m
- b) 2.210E-07 N m
- c) 2.431E-07 N m
- d) 2.674E-07 N m
- e) 2.941E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.676E+06 m/s
- b) 1.843E+06 m/s
- c) 2.028E+06 m/s
- d) 2.230E+06 m/s
- e) 2.453E+06 m/s
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?
- a) 8.881E+00 MeV
- b) 9.769E+00 MeV
- c) 1.075E+01 MeV
- d) 1.182E+01 MeV
- e) 1.300E+01 MeV
c11 S1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- a) 7.509E-14 N
- b) 8.259E-14 N
- c) 9.085E-14 N
- d) 9.994E-14 N
- e) 1.099E-13 N
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
3) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
4) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- a) 1.113E-07 N m
- b) 1.224E-07 N m
- c) 1.347E-07 N m
- d) 1.481E-07 N m
- e) 1.629E-07 N m
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- a) 4.908E+00 N/m
- b) 5.399E+00 N/m
- c) 5.939E+00 N/m
- d) 6.533E+00 N/m
- e) 7.186E+00 N/m
- a) 1.648E-06 V
- b) 1.813E-06 V
- c) 1.994E-06 V
- d) 2.194E-06 V
- e) 2.413E-06 V
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- a) 6.029E+00 MeV
- b) 6.631E+00 MeV
- c) 7.295E+00 MeV
- d) 8.024E+00 MeV
- e) 8.827E+00 MeV
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.362E+06 m/s
- b) 1.498E+06 m/s
- c) 1.647E+06 m/s
- d) 1.812E+06 m/s
- e) 1.993E+06 m/s
9) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- a) 1.062E-05 s
- b) 1.168E-05 s
- c) 1.285E-05 s
- d) 1.413E-05 s
- e) 1.555E-05 s
c11 S2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.829E+05 m/s
- b) 5.312E+05 m/s
- c) 5.843E+05 m/s
- d) 6.427E+05 m/s
- e) 7.070E+05 m/s
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- a) 2.853E+00 MeV
- b) 3.139E+00 MeV
- c) 3.453E+00 MeV
- d) 3.798E+00 MeV
- e) 4.178E+00 MeV
3) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- a) 7.327E-06 s
- b) 8.060E-06 s
- c) 8.865E-06 s
- d) 9.752E-06 s
- e) 1.073E-05 s
4) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
5) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 2.280E-07 s
- b) 2.508E-07 s
- c) 2.759E-07 s
- d) 3.035E-07 s
- e) 3.339E-07 s
7) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
c11 T0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
2) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- a) 1.062E-05 s
- b) 1.168E-05 s
- c) 1.285E-05 s
- d) 1.413E-05 s
- e) 1.555E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- a) 4.105E-07 s
- b) 4.515E-07 s
- c) 4.967E-07 s
- d) 5.464E-07 s
- e) 6.010E-07 s
4) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- a) 2.037E-01 A
- b) 2.241E-01 A
- c) 2.465E-01 A
- d) 2.712E-01 A
- e) 2.983E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- a) 4.096E+00 N/m
- b) 4.505E+00 N/m
- c) 4.956E+00 N/m
- d) 5.451E+00 N/m
- e) 5.996E+00 N/m
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.676E+06 m/s
- b) 1.843E+06 m/s
- c) 2.028E+06 m/s
- d) 2.230E+06 m/s
- e) 2.453E+06 m/s
- a) 6.795E-06 V
- b) 7.475E-06 V
- c) 8.222E-06 V
- d) 9.045E-06 V
- e) 9.949E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- a) 8.491E+00 MeV
- b) 9.340E+00 MeV
- c) 1.027E+01 MeV
- d) 1.130E+01 MeV
- e) 1.243E+01 MeV
c11 T1
edit1) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- a) 1.141E-05 s
- b) 1.255E-05 s
- c) 1.381E-05 s
- d) 1.519E-05 s
- e) 1.671E-05 s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- a) 8.491E+00 MeV
- b) 9.340E+00 MeV
- c) 1.027E+01 MeV
- d) 1.130E+01 MeV
- e) 1.243E+01 MeV
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- a) 3.245E-07 s
- b) 3.569E-07 s
- c) 3.926E-07 s
- d) 4.319E-07 s
- e) 4.751E-07 s
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
9) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- a) 2.651E-01 A
- b) 2.916E-01 A
- c) 3.208E-01 A
- d) 3.529E-01 A
- e) 3.882E-01 A
c11 T2
edit1) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- a) 1.064E-13 N
- b) 1.171E-13 N
- c) 1.288E-13 N
- d) 1.417E-13 N
- e) 1.558E-13 N
3) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s
4) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- a) 1.062E+00 N/m
- b) 1.168E+00 N/m
- c) 1.285E+00 N/m
- d) 1.413E+00 N/m
- e) 1.555E+00 N/m
5) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- a) 8.491E+00 MeV
- b) 9.340E+00 MeV
- c) 1.027E+01 MeV
- d) 1.130E+01 MeV
- e) 1.243E+01 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 4.629E-07 s
- b) 5.092E-07 s
- c) 5.601E-07 s
- d) 6.161E-07 s
- e) 6.777E-07 s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.092E+05 m/s
- b) 8.901E+05 m/s
- c) 9.791E+05 m/s
- d) 1.077E+06 m/s
- e) 1.185E+06 m/s
c11 U0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
2) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- a) 7.327E-06 s
- b) 8.060E-06 s
- c) 8.865E-06 s
- d) 9.752E-06 s
- e) 1.073E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- a) 2.225E-01 A
- b) 2.448E-01 A
- c) 2.692E-01 A
- d) 2.962E-01 A
- e) 3.258E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
6) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 ° to a uniform magnetic fied of 0.415 T?
- a) 1.387E-06 N m
- b) 1.526E-06 N m
- c) 1.679E-06 N m
- d) 1.847E-06 N m
- e) 2.031E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.829E+05 m/s
- b) 5.312E+05 m/s
- c) 5.843E+05 m/s
- d) 6.427E+05 m/s
- e) 7.070E+05 m/s
- a) 7.153E-07 V
- b) 7.869E-07 V
- c) 8.655E-07 V
- d) 9.521E-07 V
- e) 1.047E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- a) 7.476E+00 MeV
- b) 8.224E+00 MeV
- c) 9.046E+00 MeV
- d) 9.951E+00 MeV
- e) 1.095E+01 MeV
c11 U1
edit1) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- a) 7.327E-06 s
- b) 8.060E-06 s
- c) 8.865E-06 s
- d) 9.752E-06 s
- e) 1.073E-05 s
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- a) 4.908E+00 N/m
- b) 5.399E+00 N/m
- c) 5.939E+00 N/m
- d) 6.533E+00 N/m
- e) 7.186E+00 N/m
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- a) 8.491E+00 MeV
- b) 9.340E+00 MeV
- c) 1.027E+01 MeV
- d) 1.130E+01 MeV
- e) 1.243E+01 MeV
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.829E+05 m/s
- b) 5.312E+05 m/s
- c) 5.843E+05 m/s
- d) 6.427E+05 m/s
- e) 7.070E+05 m/s
5) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
- a) 1.560E-06 V
- b) 1.716E-06 V
- c) 1.888E-06 V
- d) 2.077E-06 V
- e) 2.284E-06 V
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- a) 2.561E-07 s
- b) 2.817E-07 s
- c) 3.099E-07 s
- d) 3.409E-07 s
- e) 3.750E-07 s
9) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- a) 1.113E-07 N m
- b) 1.224E-07 N m
- c) 1.347E-07 N m
- d) 1.481E-07 N m
- e) 1.629E-07 N m
c11 U2
edit1) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- a) 3.106E-01 A
- b) 3.416E-01 A
- c) 3.758E-01 A
- d) 4.134E-01 A
- e) 4.547E-01 A
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- a) 2.819E-07 s
- b) 3.101E-07 s
- c) 3.411E-07 s
- d) 3.752E-07 s
- e) 4.128E-07 s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- a) 1.336E+01 MeV
- b) 1.470E+01 MeV
- c) 1.617E+01 MeV
- d) 1.779E+01 MeV
- e) 1.957E+01 MeV
4) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- a) 1.688E-05 s
- b) 1.856E-05 s
- c) 2.042E-05 s
- d) 2.246E-05 s
- e) 2.471E-05 s
5) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- a) 3.582E-07 N m
- b) 3.940E-07 N m
- c) 4.334E-07 N m
- d) 4.768E-07 N m
- e) 5.245E-07 N m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.060E+06 m/s
- b) 1.166E+06 m/s
- c) 1.282E+06 m/s
- d) 1.411E+06 m/s
- e) 1.552E+06 m/s
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- a) 2.222E-14 N
- b) 2.444E-14 N
- c) 2.688E-14 N
- d) 2.957E-14 N
- e) 3.253E-14 N
8) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14° away from the wire?
- a) 6.302E-01 N/m
- b) 6.932E-01 N/m
- c) 7.625E-01 N/m
- d) 8.388E-01 N/m
- e) 9.227E-01 N/m
- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
c11 V0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- a) 2.576E-14 N
- b) 2.834E-14 N
- c) 3.117E-14 N
- d) 3.429E-14 N
- e) 3.772E-14 N
2) A charged particle in a magnetic field of 4.130E-04 T is moving perpendicular to the magnetic field with a speed of 4.710E+05 m/s. What is the period of orbit if orbital radius is 0.458 m?
- a) 6.110E-06 s
- b) 6.721E-06 s
- c) 7.393E-06 s
- d) 8.132E-06 s
- e) 8.945E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- a) 8.137E-07 s
- b) 8.951E-07 s
- c) 9.846E-07 s
- d) 1.083E-06 s
- e) 1.191E-06 s
4) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- a) 1.956E-01 A
- b) 2.152E-01 A
- c) 2.367E-01 A
- d) 2.604E-01 A
- e) 2.864E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.092E+05 m/s
- b) 8.901E+05 m/s
- c) 9.791E+05 m/s
- d) 1.077E+06 m/s
- e) 1.185E+06 m/s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- a) 4.914E-01 MeV
- b) 5.406E-01 MeV
- c) 5.946E-01 MeV
- d) 6.541E-01 MeV
- e) 7.195E-01 MeV
c11 V1
edit- a) 2.275E-06 V
- b) 2.502E-06 V
- c) 2.752E-06 V
- d) 3.027E-06 V
- e) 3.330E-06 V
2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
3) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- a) 2.348E+00 N/m
- b) 2.583E+00 N/m
- c) 2.842E+00 N/m
- d) 3.126E+00 N/m
- e) 3.438E+00 N/m
4) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
5) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- a) 7.509E-14 N
- b) 8.259E-14 N
- c) 9.085E-14 N
- d) 9.994E-14 N
- e) 1.099E-13 N
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 4.629E-07 s
- b) 5.092E-07 s
- c) 5.601E-07 s
- d) 6.161E-07 s
- e) 6.777E-07 s
8) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- a) 2.899E-05 s
- b) 3.189E-05 s
- c) 3.508E-05 s
- d) 3.859E-05 s
- e) 4.244E-05 s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
c11 V2
edit1) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
- a) 1.375E-05 V
- b) 1.513E-05 V
- c) 1.664E-05 V
- d) 1.831E-05 V
- e) 2.014E-05 V
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- a) 4.783E-14 N
- b) 5.262E-14 N
- c) 5.788E-14 N
- d) 6.367E-14 N
- e) 7.003E-14 N
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14° away from the wire?
- a) 6.302E-01 N/m
- b) 6.932E-01 N/m
- c) 7.625E-01 N/m
- d) 8.388E-01 N/m
- e) 9.227E-01 N/m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.504E+06 m/s
- b) 1.655E+06 m/s
- c) 1.820E+06 m/s
- d) 2.002E+06 m/s
- e) 2.202E+06 m/s
7) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
8) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- a) 3.582E-07 N m
- b) 3.940E-07 N m
- c) 4.334E-07 N m
- d) 4.768E-07 N m
- e) 5.245E-07 N m
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- a) 2.875E+00 MeV
- b) 3.162E+00 MeV
- c) 3.479E+00 MeV
- d) 3.827E+00 MeV
- e) 4.209E+00 MeV
c11 W0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- a) 2.561E-07 s
- b) 2.817E-07 s
- c) 3.099E-07 s
- d) 3.409E-07 s
- e) 3.750E-07 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- a) 3.999E-01 A
- b) 4.398E-01 A
- c) 4.838E-01 A
- d) 5.322E-01 A
- e) 5.854E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m
6) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- a) 1.113E-07 N m
- b) 1.224E-07 N m
- c) 1.347E-07 N m
- d) 1.481E-07 N m
- e) 1.629E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- a) 6.534E+00 MeV
- b) 7.187E+00 MeV
- c) 7.906E+00 MeV
- d) 8.697E+00 MeV
- e) 9.566E+00 MeV
c11 W1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- a) 7.691E-14 N
- b) 8.460E-14 N
- c) 9.306E-14 N
- d) 1.024E-13 N
- e) 1.126E-13 N
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- a) 4.914E-01 MeV
- b) 5.406E-01 MeV
- c) 5.946E-01 MeV
- d) 6.541E-01 MeV
- e) 7.195E-01 MeV
3) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- a) 3.648E+00 N/m
- b) 4.012E+00 N/m
- c) 4.414E+00 N/m
- d) 4.855E+00 N/m
- e) 5.341E+00 N/m
4) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- a) 1.903E-07 N m
- b) 2.093E-07 N m
- c) 2.302E-07 N m
- d) 2.532E-07 N m
- e) 2.785E-07 N m
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
6) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- a) 1.212E-07 s
- b) 1.333E-07 s
- c) 1.466E-07 s
- d) 1.613E-07 s
- e) 1.774E-07 s
8) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- a) 4.784E-06 s
- b) 5.262E-06 s
- c) 5.788E-06 s
- d) 6.367E-06 s
- e) 7.004E-06 s
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 9.223E+05 m/s
- b) 1.015E+06 m/s
- c) 1.116E+06 m/s
- d) 1.228E+06 m/s
- e) 1.350E+06 m/s
c11 W2
edit1) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- a) 1.386E-13 N
- b) 1.524E-13 N
- c) 1.676E-13 N
- d) 1.844E-13 N
- e) 2.029E-13 N
3) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- a) 5.076E-01 A
- b) 5.584E-01 A
- c) 6.142E-01 A
- d) 6.757E-01 A
- e) 7.432E-01 A
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 4.982E+05 m/s
- b) 5.480E+05 m/s
- c) 6.028E+05 m/s
- d) 6.631E+05 m/s
- e) 7.294E+05 m/s
- a) 8.660E-06 V
- b) 9.526E-06 V
- c) 1.048E-05 V
- d) 1.153E-05 V
- e) 1.268E-05 V
7) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- a) 7.793E-06 s
- b) 8.572E-06 s
- c) 9.429E-06 s
- d) 1.037E-05 s
- e) 1.141E-05 s
8) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- a) 2.847E+00 N/m
- b) 3.132E+00 N/m
- c) 3.445E+00 N/m
- d) 3.789E+00 N/m
- e) 4.168E+00 N/m
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- a) 2.819E-07 s
- b) 3.101E-07 s
- c) 3.411E-07 s
- d) 3.752E-07 s
- e) 4.128E-07 s
c11 X0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- a) 5.296E-14 N
- b) 5.826E-14 N
- c) 6.408E-14 N
- d) 7.049E-14 N
- e) 7.754E-14 N
2) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- a) 4.963E-01 A
- b) 5.459E-01 A
- c) 6.005E-01 A
- d) 6.605E-01 A
- e) 7.266E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- a) 2.417E+00 N/m
- b) 2.659E+00 N/m
- c) 2.924E+00 N/m
- d) 3.217E+00 N/m
- e) 3.539E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- a) 5.805E-08 N m
- b) 6.386E-08 N m
- c) 7.024E-08 N m
- d) 7.727E-08 N m
- e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 8.092E+05 m/s
- b) 8.901E+05 m/s
- c) 9.791E+05 m/s
- d) 1.077E+06 m/s
- e) 1.185E+06 m/s
- a) 1.375E-05 V
- b) 1.513E-05 V
- c) 1.664E-05 V
- d) 1.831E-05 V
- e) 2.014E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- a) 6.029E+00 MeV
- b) 6.631E+00 MeV
- c) 7.295E+00 MeV
- d) 8.024E+00 MeV
- e) 8.827E+00 MeV
c11 X1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
2) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- a) 8.520E-01 N/m
- b) 9.372E-01 N/m
- c) 1.031E+00 N/m
- d) 1.134E+00 N/m
- e) 1.247E+00 N/m
3) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- a) 6.626E-01 A
- b) 7.289E-01 A
- c) 8.018E-01 A
- d) 8.819E-01 A
- e) 9.701E-01 A
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 1.504E+06 m/s
- b) 1.655E+06 m/s
- c) 1.820E+06 m/s
- d) 2.002E+06 m/s
- e) 2.202E+06 m/s
- a) 6.795E-06 V
- b) 7.475E-06 V
- c) 8.222E-06 V
- d) 9.045E-06 V
- e) 9.949E-06 V
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- a) 1.222E-06 s
- b) 1.344E-06 s
- c) 1.479E-06 s
- d) 1.627E-06 s
- e) 1.789E-06 s
7) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- a) 1.323E+01 MeV
- b) 1.456E+01 MeV
- c) 1.601E+01 MeV
- d) 1.761E+01 MeV
- e) 1.937E+01 MeV
9) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
c11 X2
edit1) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- a) 1.897E-07 s
- b) 2.087E-07 s
- c) 2.296E-07 s
- d) 2.525E-07 s
- e) 2.778E-07 s
3) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- a) 2.199E-13 N
- b) 2.419E-13 N
- c) 2.661E-13 N
- d) 2.927E-13 N
- e) 3.220E-13 N
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- a) 4.914E-01 MeV
- b) 5.406E-01 MeV
- c) 5.946E-01 MeV
- d) 6.541E-01 MeV
- e) 7.195E-01 MeV
6) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- a) 5.258E-01 A
- b) 5.784E-01 A
- c) 6.362E-01 A
- d) 6.998E-01 A
- e) 7.698E-01 A
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 6.804E+05 m/s
- b) 7.484E+05 m/s
- c) 8.233E+05 m/s
- d) 9.056E+05 m/s
- e) 9.962E+05 m/s
- a) 9.911E-06 V
- b) 1.090E-05 V
- c) 1.199E-05 V
- d) 1.319E-05 V
- e) 1.451E-05 V
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- a) 5.205E-01 N/m
- b) 5.725E-01 N/m
- c) 6.297E-01 N/m
- d) 6.927E-01 N/m
- e) 7.620E-01 N/m
c11 Y0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- a) 2.899E-14 N
- b) 3.189E-14 N
- c) 3.508E-14 N
- d) 3.859E-14 N
- e) 4.245E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- a) 1.004E-05 s
- b) 1.104E-05 s
- c) 1.215E-05 s
- d) 1.336E-05 s
- e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- a) 9.857E-07 s
- b) 1.084E-06 s
- c) 1.193E-06 s
- d) 1.312E-06 s
- e) 1.443E-06 s
4) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?
- a) 1.432E+00 A
- b) 1.575E+00 A
- c) 1.732E+00 A
- d) 1.905E+00 A
- e) 2.096E+00 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- a) 3.648E+00 N/m
- b) 4.012E+00 N/m
- c) 4.414E+00 N/m
- d) 4.855E+00 N/m
- e) 5.341E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- a) 5.805E-08 N m
- b) 6.386E-08 N m
- c) 7.024E-08 N m
- d) 7.727E-08 N m
- e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
- a) 5.685E-06 V
- b) 6.253E-06 V
- c) 6.878E-06 V
- d) 7.566E-06 V
- e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- a) 2.875E+00 MeV
- b) 3.162E+00 MeV
- c) 3.479E+00 MeV
- d) 3.827E+00 MeV
- e) 4.209E+00 MeV
c11 Y1
edit1) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- a) 2.697E+00 N/m
- b) 2.967E+00 N/m
- c) 3.263E+00 N/m
- d) 3.590E+00 N/m
- e) 3.948E+00 N/m
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
- a) 6.104E-06 V
- b) 6.714E-06 V
- c) 7.385E-06 V
- d) 8.124E-06 V
- e) 8.936E-06 V
4) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- a) 2.259E-01 A
- b) 2.485E-01 A
- c) 2.734E-01 A
- d) 3.007E-01 A
- e) 3.308E-01 A
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- a) 3.245E-07 s
- b) 3.569E-07 s
- c) 3.926E-07 s
- d) 4.319E-07 s
- e) 4.751E-07 s
7) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
8) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- a) 6.257E-07 N m
- b) 6.882E-07 N m
- c) 7.570E-07 N m
- d) 8.327E-07 N m
- e) 9.160E-07 N m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- a) 1.064E-13 N
- b) 1.171E-13 N
- c) 1.288E-13 N
- d) 1.417E-13 N
- e) 1.558E-13 N
c11 Y2
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- a) 2.576E-14 N
- b) 2.834E-14 N
- c) 3.117E-14 N
- d) 3.429E-14 N
- e) 3.772E-14 N
2) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- a) 7.056E-02 A
- b) 7.762E-02 A
- c) 8.538E-02 A
- d) 9.392E-02 A
- e) 1.033E-01 A
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
- a) 7.202E-06 V
- b) 7.922E-06 V
- c) 8.714E-06 V
- d) 9.586E-06 V
- e) 1.054E-05 V
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.768E+05 m/s
- b) 3.045E+05 m/s
- c) 3.349E+05 m/s
- d) 3.684E+05 m/s
- e) 4.052E+05 m/s
6) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- a) 8.520E-01 N/m
- b) 9.372E-01 N/m
- c) 1.031E+00 N/m
- d) 1.134E+00 N/m
- e) 1.247E+00 N/m
7) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- a) 1.568E-06 N m
- b) 1.724E-06 N m
- c) 1.897E-06 N m
- d) 2.087E-06 N m
- e) 2.295E-06 N m
8) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- a) 2.899E-05 s
- b) 3.189E-05 s
- c) 3.508E-05 s
- d) 3.859E-05 s
- e) 4.244E-05 s
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- a) 4.878E-07 s
- b) 5.366E-07 s
- c) 5.903E-07 s
- d) 6.493E-07 s
- e) 7.143E-07 s
c11 Z0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- a) 2.074E-14 N
- b) 2.282E-14 N
- c) 2.510E-14 N
- d) 2.761E-14 N
- e) 3.037E-14 N
2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- a) 1.141E-05 s
- b) 1.255E-05 s
- c) 1.381E-05 s
- d) 1.519E-05 s
- e) 1.671E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- a) 2.819E-07 s
- b) 3.101E-07 s
- c) 3.411E-07 s
- d) 3.752E-07 s
- e) 4.128E-07 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- a) 4.963E-01 A
- b) 5.459E-01 A
- c) 6.005E-01 A
- d) 6.605E-01 A
- e) 7.266E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- a) 1.510E+00 N/m
- b) 1.661E+00 N/m
- c) 1.827E+00 N/m
- d) 2.010E+00 N/m
- e) 2.211E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- a) 1.075E-06 N m
- b) 1.182E-06 N m
- c) 1.301E-06 N m
- d) 1.431E-06 N m
- e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 5.072E+05 m/s
- b) 5.579E+05 m/s
- c) 6.137E+05 m/s
- d) 6.751E+05 m/s
- e) 7.426E+05 m/s
- a) 1.746E-06 V
- b) 1.921E-06 V
- c) 2.113E-06 V
- d) 2.324E-06 V
- e) 2.557E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- a) 7.342E-01 MeV
- b) 8.076E-01 MeV
- c) 8.884E-01 MeV
- d) 9.772E-01 MeV
- e) 1.075E+00 MeV
c11 Z1
edit1) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
- a) 6.795E-06 V
- b) 7.475E-06 V
- c) 8.222E-06 V
- d) 9.045E-06 V
- e) 9.949E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- a) 1.828E-14 N
- b) 2.010E-14 N
- c) 2.211E-14 N
- d) 2.433E-14 N
- e) 2.676E-14 N
4) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m
5) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- a) 8.713E-06 s
- b) 9.584E-06 s
- c) 1.054E-05 s
- d) 1.160E-05 s
- e) 1.276E-05 s
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 9.223E+05 m/s
- b) 1.015E+06 m/s
- c) 1.116E+06 m/s
- d) 1.228E+06 m/s
- e) 1.350E+06 m/s
7) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?
- a) 1.432E+00 A
- b) 1.575E+00 A
- c) 1.732E+00 A
- d) 1.905E+00 A
- e) 2.096E+00 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- a) 8.137E-07 s
- b) 8.951E-07 s
- c) 9.846E-07 s
- d) 1.083E-06 s
- e) 1.191E-06 s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- a) 2.574E-01 MeV
- b) 2.831E-01 MeV
- c) 3.114E-01 MeV
- d) 3.425E-01 MeV
- e) 3.768E-01 MeV
c11 Z2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- a) 4.914E-01 MeV
- b) 5.406E-01 MeV
- c) 5.946E-01 MeV
- d) 6.541E-01 MeV
- e) 7.195E-01 MeV
2) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- a) 1.064E-13 N
- b) 1.171E-13 N
- c) 1.288E-13 N
- d) 1.417E-13 N
- e) 1.558E-13 N
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- a) 2.746E+06 m/s
- b) 3.021E+06 m/s
- c) 3.323E+06 m/s
- d) 3.655E+06 m/s
- e) 4.020E+06 m/s
5) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- a) 2.259E-01 A
- b) 2.485E-01 A
- c) 2.734E-01 A
- d) 3.007E-01 A
- e) 3.308E-01 A
- a) 1.080E-06 V
- b) 1.188E-06 V
- c) 1.306E-06 V
- d) 1.437E-06 V
- e) 1.581E-06 V
7) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- a) 1.476E-06 N m
- b) 1.624E-06 N m
- c) 1.786E-06 N m
- d) 1.965E-06 N m
- e) 2.162E-06 N m
8) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- a) 3.154E-05 s
- b) 3.470E-05 s
- c) 3.817E-05 s
- d) 4.198E-05 s
- e) 4.618E-05 s
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85° from its original direction. How much time did it spend in that magnetic field?
- a) 1.627E-06 s
- b) 1.790E-06 s
- c) 1.969E-06 s
- d) 2.166E-06 s
- e) 2.382E-06 s
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- of 10 blank lines to separate exams from keys
- of 10 blank lines to separate exams from keys
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Key: A0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.01 i + 5.35 j + 2.07 k) x 104 m/s?
- +a) 1.192E-13 N
- -b) 1.311E-13 N
- -c) 1.442E-13 N
- -d) 1.586E-13 N
- -e) 1.745E-13 N
2) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- -a) 4.784E-06 s
- +b) 5.262E-06 s
- -c) 5.788E-06 s
- -d) 6.367E-06 s
- -e) 7.004E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
4) A 42 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.48 T. What current is required to maintain this balance?
- -a) 2.812E-01 A
- -b) 3.093E-01 A
- +c) 3.403E-01 A
- -d) 3.743E-01 A
- -e) 4.117E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- -a) 1.131E+00 N/m
- -b) 1.244E+00 N/m
- -c) 1.368E+00 N/m
- +d) 1.505E+00 N/m
- -e) 1.655E+00 N/m
6) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.523 T?
- -a) 2.699E-06 N m
- -b) 2.969E-06 N m
- -c) 3.266E-06 N m
- -d) 3.593E-06 N m
- +e) 3.952E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.060E+06 m/s
- -b) 1.166E+06 m/s
- -c) 1.282E+06 m/s
- -d) 1.411E+06 m/s
- +e) 1.552E+06 m/s
- +a) 8.660E-06 V
- -b) 9.526E-06 V
- -c) 1.048E-05 V
- -d) 1.153E-05 V
- -e) 1.268E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
Key: A1
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- -a) 2.875E+00 MeV
- -b) 3.162E+00 MeV
- -c) 3.479E+00 MeV
- -d) 3.827E+00 MeV
- +e) 4.209E+00 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- +a) 1.064E-13 N
- -b) 1.171E-13 N
- -c) 1.288E-13 N
- -d) 1.417E-13 N
- -e) 1.558E-13 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
5) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- -a) 2.037E-01 A
- +b) 2.241E-01 A
- -c) 2.465E-01 A
- -d) 2.712E-01 A
- -e) 2.983E-01 A
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
7) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.095E-06 s
- +b) 2.305E-06 s
- -c) 2.535E-06 s
- -d) 2.789E-06 s
- -e) 3.067E-06 s
9) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- -a) 3.582E-07 N m
- -b) 3.940E-07 N m
- -c) 4.334E-07 N m
- +d) 4.768E-07 N m
- -e) 5.245E-07 N m
Key: A2
edit1) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- -a) 6.534E+00 MeV
- -b) 7.187E+00 MeV
- -c) 7.906E+00 MeV
- +d) 8.697E+00 MeV
- -e) 9.566E+00 MeV
3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 2.746E+06 m/s
- -b) 3.021E+06 m/s
- -c) 3.323E+06 m/s
- -d) 3.655E+06 m/s
- -e) 4.020E+06 m/s
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
6) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
7) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- -a) 1.510E+00 N/m
- +b) 1.661E+00 N/m
- -c) 1.827E+00 N/m
- -d) 2.010E+00 N/m
- -e) 2.211E+00 N/m
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- -a) 1.828E-14 N
- -b) 2.010E-14 N
- -c) 2.211E-14 N
- -d) 2.433E-14 N
- +e) 2.676E-14 N
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
Key: B0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- -a) 7.509E-14 N
- -b) 8.259E-14 N
- +c) 9.085E-14 N
- -d) 9.994E-14 N
- -e) 1.099E-13 N
2) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- -a) 2.730E-06 s
- +b) 3.003E-06 s
- -c) 3.303E-06 s
- -d) 3.633E-06 s
- -e) 3.997E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
4) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- -a) 7.056E-02 A
- -b) 7.762E-02 A
- -c) 8.538E-02 A
- +d) 9.392E-02 A
- -e) 1.033E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- -a) 8.520E-01 N/m
- -b) 9.372E-01 N/m
- -c) 1.031E+00 N/m
- +d) 1.134E+00 N/m
- -e) 1.247E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 8.971E+05 m/s
- -b) 9.868E+05 m/s
- -c) 1.085E+06 m/s
- +d) 1.194E+06 m/s
- -e) 1.313E+06 m/s
- -a) 1.193E-06 V
- -b) 1.313E-06 V
- -c) 1.444E-06 V
- -d) 1.588E-06 V
- +e) 1.747E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- -a) 6.534E+00 MeV
- -b) 7.187E+00 MeV
- -c) 7.906E+00 MeV
- +d) 8.697E+00 MeV
- -e) 9.566E+00 MeV
Key: B1
edit1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- -a) 4.096E+00 N/m
- +b) 4.505E+00 N/m
- -c) 4.956E+00 N/m
- -d) 5.451E+00 N/m
- -e) 5.996E+00 N/m
3) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- +a) 6.080E-06 s
- -b) 6.688E-06 s
- -c) 7.356E-06 s
- -d) 8.092E-06 s
- -e) 8.901E-06 s
4) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?
- +a) 1.022E-06 N m
- -b) 1.124E-06 N m
- -c) 1.236E-06 N m
- -d) 1.360E-06 N m
- -e) 1.496E-06 N m
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 3.132E+05 m/s
- -b) 3.445E+05 m/s
- -c) 3.790E+05 m/s
- -d) 4.169E+05 m/s
- -e) 4.585E+05 m/s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- -a) 2.853E+00 MeV
- +b) 3.139E+00 MeV
- -c) 3.453E+00 MeV
- -d) 3.798E+00 MeV
- -e) 4.178E+00 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.561E-07 s
- +b) 2.817E-07 s
- -c) 3.099E-07 s
- -d) 3.409E-07 s
- -e) 3.750E-07 s
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- -a) 1.757E-14 N
- +b) 1.933E-14 N
- -c) 2.126E-14 N
- -d) 2.339E-14 N
- -e) 2.573E-14 N
Key: B2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
3) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
4) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
5) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- -a) 6.534E+00 MeV
- -b) 7.187E+00 MeV
- -c) 7.906E+00 MeV
- +d) 8.697E+00 MeV
- -e) 9.566E+00 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.819E-07 s
- -b) 3.101E-07 s
- +c) 3.411E-07 s
- -d) 3.752E-07 s
- -e) 4.128E-07 s
8) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- -a) 4.784E-06 s
- +b) 5.262E-06 s
- -c) 5.788E-06 s
- -d) 6.367E-06 s
- -e) 7.004E-06 s
- -a) 9.015E-06 V
- +b) 9.916E-06 V
- -c) 1.091E-05 V
- -d) 1.200E-05 V
- -e) 1.320E-05 V
Key: C0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- -a) 2.576E-14 N
- -b) 2.834E-14 N
- -c) 3.117E-14 N
- -d) 3.429E-14 N
- +e) 3.772E-14 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- -a) 2.189E-05 s
- +b) 2.408E-05 s
- -c) 2.649E-05 s
- -d) 2.914E-05 s
- -e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- -a) 1.644E-01 A
- -b) 1.808E-01 A
- +c) 1.989E-01 A
- -d) 2.188E-01 A
- -e) 2.406E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- -a) 4.096E+00 N/m
- +b) 4.505E+00 N/m
- -c) 4.956E+00 N/m
- -d) 5.451E+00 N/m
- -e) 5.996E+00 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- -a) 1.866E-07 N m
- -b) 2.052E-07 N m
- -c) 2.258E-07 N m
- +d) 2.484E-07 N m
- -e) 2.732E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.504E+06 m/s
- -b) 1.655E+06 m/s
- -c) 1.820E+06 m/s
- -d) 2.002E+06 m/s
- -e) 2.202E+06 m/s
- -a) 9.015E-06 V
- +b) 9.916E-06 V
- -c) 1.091E-05 V
- -d) 1.200E-05 V
- -e) 1.320E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?
- -a) 5.342E+00 MeV
- -b) 5.877E+00 MeV
- -c) 6.464E+00 MeV
- +d) 7.111E+00 MeV
- -e) 7.822E+00 MeV
Key: C1
edit1) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- -a) 4.908E+00 N/m
- +b) 5.399E+00 N/m
- -c) 5.939E+00 N/m
- -d) 6.533E+00 N/m
- -e) 7.186E+00 N/m
2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- +a) 6.080E-06 s
- -b) 6.688E-06 s
- -c) 7.356E-06 s
- -d) 8.092E-06 s
- -e) 8.901E-06 s
- +a) 8.660E-06 V
- -b) 9.526E-06 V
- -c) 1.048E-05 V
- -d) 1.153E-05 V
- -e) 1.268E-05 V
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
6) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- -a) 1.174E+00 A
- -b) 1.291E+00 A
- -c) 1.420E+00 A
- -d) 1.562E+00 A
- +e) 1.719E+00 A
7) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 8.608E-01 MeV
- -b) 9.468E-01 MeV
- -c) 1.042E+00 MeV
- -d) 1.146E+00 MeV
- +e) 1.260E+00 MeV
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- -a) 4.419E-14 N
- -b) 4.861E-14 N
- -c) 5.347E-14 N
- +d) 5.882E-14 N
- -e) 6.470E-14 N
Key: C2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 8.608E-01 MeV
- -b) 9.468E-01 MeV
- -c) 1.042E+00 MeV
- -d) 1.146E+00 MeV
- +e) 1.260E+00 MeV
2) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- -a) 8.520E-01 N/m
- -b) 9.372E-01 N/m
- -c) 1.031E+00 N/m
- +d) 1.134E+00 N/m
- -e) 1.247E+00 N/m
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 8.971E+05 m/s
- -b) 9.868E+05 m/s
- -c) 1.085E+06 m/s
- +d) 1.194E+06 m/s
- -e) 1.313E+06 m/s
5) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- -a) 1.644E-01 A
- -b) 1.808E-01 A
- +c) 1.989E-01 A
- -d) 2.188E-01 A
- -e) 2.406E-01 A
6) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
- -a) 7.153E-07 V
- -b) 7.869E-07 V
- -c) 8.655E-07 V
- +d) 9.521E-07 V
- -e) 1.047E-06 V
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
9) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
Key: D0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
2) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- -a) 7.793E-06 s
- -b) 8.572E-06 s
- -c) 9.429E-06 s
- -d) 1.037E-05 s
- +e) 1.141E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.095E-06 s
- +b) 2.305E-06 s
- -c) 2.535E-06 s
- -d) 2.789E-06 s
- -e) 3.067E-06 s
4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- -a) 3.106E-01 A
- +b) 3.416E-01 A
- -c) 3.758E-01 A
- -d) 4.134E-01 A
- -e) 4.547E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- +a) 5.805E-08 N m
- -b) 6.386E-08 N m
- -c) 7.024E-08 N m
- -d) 7.727E-08 N m
- -e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
- -a) 7.153E-07 V
- -b) 7.869E-07 V
- -c) 8.655E-07 V
- +d) 9.521E-07 V
- -e) 1.047E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- -a) 1.004E+00 MeV
- -b) 1.104E+00 MeV
- -c) 1.215E+00 MeV
- -d) 1.336E+00 MeV
- +e) 1.470E+00 MeV
Key: D1
edit1) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
2) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.629E-07 s
- -b) 5.092E-07 s
- -c) 5.601E-07 s
- +d) 6.161E-07 s
- -e) 6.777E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- -a) 3.432E-01 A
- -b) 3.775E-01 A
- -c) 4.152E-01 A
- +d) 4.568E-01 A
- -e) 5.024E-01 A
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?
- -a) 8.881E+00 MeV
- -b) 9.769E+00 MeV
- -c) 1.075E+01 MeV
- -d) 1.182E+01 MeV
- +e) 1.300E+01 MeV
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
8) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- +a) 5.205E-01 N/m
- -b) 5.725E-01 N/m
- -c) 6.297E-01 N/m
- -d) 6.927E-01 N/m
- -e) 7.620E-01 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- -a) 2.576E-14 N
- -b) 2.834E-14 N
- -c) 3.117E-14 N
- -d) 3.429E-14 N
- +e) 3.772E-14 N
Key: D2
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- -a) 2.222E-14 N
- -b) 2.444E-14 N
- -c) 2.688E-14 N
- +d) 2.957E-14 N
- -e) 3.253E-14 N
2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- -a) 3.106E-01 A
- +b) 3.416E-01 A
- -c) 3.758E-01 A
- -d) 4.134E-01 A
- -e) 4.547E-01 A
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.878E-07 s
- -b) 5.366E-07 s
- +c) 5.903E-07 s
- -d) 6.493E-07 s
- -e) 7.143E-07 s
- -a) 1.375E-05 V
- +b) 1.513E-05 V
- -c) 1.664E-05 V
- -d) 1.831E-05 V
- -e) 2.014E-05 V
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- -a) 1.131E+00 N/m
- -b) 1.244E+00 N/m
- -c) 1.368E+00 N/m
- +d) 1.505E+00 N/m
- -e) 1.655E+00 N/m
6) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- +a) 1.062E-05 s
- -b) 1.168E-05 s
- -c) 1.285E-05 s
- -d) 1.413E-05 s
- -e) 1.555E-05 s
7) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
Key: E0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 7.270E-07 s
- -b) 7.997E-07 s
- -c) 8.797E-07 s
- -d) 9.676E-07 s
- +e) 1.064E-06 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- -a) 3.999E-01 A
- -b) 4.398E-01 A
- -c) 4.838E-01 A
- -d) 5.322E-01 A
- +e) 5.854E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?
- -a) 1.001E+00 N/m
- -b) 1.101E+00 N/m
- +c) 1.211E+00 N/m
- -d) 1.332E+00 N/m
- -e) 1.465E+00 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- -a) 1.866E-07 N m
- -b) 2.052E-07 N m
- -c) 2.258E-07 N m
- +d) 2.484E-07 N m
- -e) 2.732E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 8.971E+05 m/s
- -b) 9.868E+05 m/s
- -c) 1.085E+06 m/s
- +d) 1.194E+06 m/s
- -e) 1.313E+06 m/s
- +a) 1.209E-06 V
- -b) 1.329E-06 V
- -c) 1.462E-06 V
- -d) 1.609E-06 V
- -e) 1.770E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- -a) 1.336E+01 MeV
- -b) 1.470E+01 MeV
- -c) 1.617E+01 MeV
- +d) 1.779E+01 MeV
- -e) 1.957E+01 MeV
Key: E1
edit1) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- -a) 8.491E+00 MeV
- -b) 9.340E+00 MeV
- +c) 1.027E+01 MeV
- -d) 1.130E+01 MeV
- -e) 1.243E+01 MeV
- -a) 9.015E-06 V
- +b) 9.916E-06 V
- -c) 1.091E-05 V
- -d) 1.200E-05 V
- -e) 1.320E-05 V
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 7.270E-07 s
- -b) 7.997E-07 s
- -c) 8.797E-07 s
- -d) 9.676E-07 s
- +e) 1.064E-06 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- -a) 4.783E-14 N
- +b) 5.262E-14 N
- -c) 5.788E-14 N
- -d) 6.367E-14 N
- -e) 7.003E-14 N
9) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
Key: E2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- +a) 5.610E-07 N m
- -b) 6.171E-07 N m
- -c) 6.788E-07 N m
- -d) 7.467E-07 N m
- -e) 8.213E-07 N m
3) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- -a) 7.793E-06 s
- -b) 8.572E-06 s
- -c) 9.429E-06 s
- -d) 1.037E-05 s
- +e) 1.141E-05 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- -a) 2.596E-01 A
- -b) 2.855E-01 A
- +c) 3.141E-01 A
- -d) 3.455E-01 A
- -e) 3.801E-01 A
- -a) 1.080E-06 V
- -b) 1.188E-06 V
- -c) 1.306E-06 V
- -d) 1.437E-06 V
- +e) 1.581E-06 V
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- -a) 2.222E-14 N
- -b) 2.444E-14 N
- -c) 2.688E-14 N
- +d) 2.957E-14 N
- -e) 3.253E-14 N
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.676E+06 m/s
- -b) 1.843E+06 m/s
- -c) 2.028E+06 m/s
- -d) 2.230E+06 m/s
- -e) 2.453E+06 m/s
9) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- -a) 1.062E+00 N/m
- -b) 1.168E+00 N/m
- -c) 1.285E+00 N/m
- -d) 1.413E+00 N/m
- +e) 1.555E+00 N/m
Key: F0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- -a) 1.386E-13 N
- +b) 1.524E-13 N
- -c) 1.676E-13 N
- -d) 1.844E-13 N
- -e) 2.029E-13 N
2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.453E-07 s
- -b) 4.898E-07 s
- -c) 5.388E-07 s
- -d) 5.927E-07 s
- -e) 6.519E-07 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- -a) 2.596E-01 A
- -b) 2.855E-01 A
- +c) 3.141E-01 A
- -d) 3.455E-01 A
- -e) 3.801E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- +a) 5.205E-01 N/m
- -b) 5.725E-01 N/m
- -c) 6.297E-01 N/m
- -d) 6.927E-01 N/m
- -e) 7.620E-01 N/m
6) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- -a) 1.585E-07 N m
- -b) 1.743E-07 N m
- -c) 1.918E-07 N m
- -d) 2.110E-07 N m
- +e) 2.321E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 8.608E-01 MeV
- -b) 9.468E-01 MeV
- -c) 1.042E+00 MeV
- -d) 1.146E+00 MeV
- +e) 1.260E+00 MeV
Key: F1
edit1) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- -a) 1.585E-07 N m
- -b) 1.743E-07 N m
- -c) 1.918E-07 N m
- -d) 2.110E-07 N m
- +e) 2.321E-07 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- -a) 2.576E-14 N
- -b) 2.834E-14 N
- -c) 3.117E-14 N
- -d) 3.429E-14 N
- +e) 3.772E-14 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
4) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
6) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- -a) 2.259E-01 A
- -b) 2.485E-01 A
- +c) 2.734E-01 A
- -d) 3.007E-01 A
- -e) 3.308E-01 A
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
- -a) 1.080E-06 V
- -b) 1.188E-06 V
- -c) 1.306E-06 V
- -d) 1.437E-06 V
- +e) 1.581E-06 V
9) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s
Key: F2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- -a) 4.783E-14 N
- +b) 5.262E-14 N
- -c) 5.788E-14 N
- -d) 6.367E-14 N
- -e) 7.003E-14 N
3) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- -a) 4.963E-01 A
- -b) 5.459E-01 A
- +c) 6.005E-01 A
- -d) 6.605E-01 A
- -e) 7.266E-01 A
- -a) 1.648E-06 V
- -b) 1.813E-06 V
- -c) 1.994E-06 V
- +d) 2.194E-06 V
- -e) 2.413E-06 V
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.095E-06 s
- +b) 2.305E-06 s
- -c) 2.535E-06 s
- -d) 2.789E-06 s
- -e) 3.067E-06 s
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.676E+06 m/s
- -b) 1.843E+06 m/s
- -c) 2.028E+06 m/s
- -d) 2.230E+06 m/s
- -e) 2.453E+06 m/s
8) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
Key: G0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.01 i + 5.35 j + 2.07 k) x 104 m/s?
- +a) 1.192E-13 N
- -b) 1.311E-13 N
- -c) 1.442E-13 N
- -d) 1.586E-13 N
- -e) 1.745E-13 N
2) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- +a) 5.560E-06 s
- -b) 6.116E-06 s
- -c) 6.728E-06 s
- -d) 7.401E-06 s
- -e) 8.141E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- -a) 3.999E-01 A
- -b) 4.398E-01 A
- -c) 4.838E-01 A
- -d) 5.322E-01 A
- +e) 5.854E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- -a) 1.062E+00 N/m
- -b) 1.168E+00 N/m
- -c) 1.285E+00 N/m
- -d) 1.413E+00 N/m
- +e) 1.555E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- +a) 7.629E-07 N m
- -b) 8.392E-07 N m
- -c) 9.232E-07 N m
- -d) 1.015E-06 N m
- -e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 8.092E+05 m/s
- -b) 8.901E+05 m/s
- -c) 9.791E+05 m/s
- -d) 1.077E+06 m/s
- -e) 1.185E+06 m/s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
Key: G1
edit1) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- -a) 1.644E-01 A
- -b) 1.808E-01 A
- +c) 1.989E-01 A
- -d) 2.188E-01 A
- -e) 2.406E-01 A
- -a) 6.795E-06 V
- -b) 7.475E-06 V
- -c) 8.222E-06 V
- +d) 9.045E-06 V
- -e) 9.949E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- -a) 4.419E-14 N
- -b) 4.861E-14 N
- -c) 5.347E-14 N
- +d) 5.882E-14 N
- -e) 6.470E-14 N
4) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- -a) 1.336E+01 MeV
- -b) 1.470E+01 MeV
- -c) 1.617E+01 MeV
- +d) 1.779E+01 MeV
- -e) 1.957E+01 MeV
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
8) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 8.971E+05 m/s
- -b) 9.868E+05 m/s
- -c) 1.085E+06 m/s
- +d) 1.194E+06 m/s
- -e) 1.313E+06 m/s
Key: G2
edit1) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- -a) 2.596E-01 A
- -b) 2.855E-01 A
- +c) 3.141E-01 A
- -d) 3.455E-01 A
- -e) 3.801E-01 A
2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.940E-06 s
- -b) 2.134E-06 s
- -c) 2.347E-06 s
- +d) 2.582E-06 s
- -e) 2.840E-06 s
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.36 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.25 i + 7.71 j + 2.91 k) x 104 m/s?
- -a) 8.890E-14 N
- -b) 9.779E-14 N
- +c) 1.076E-13 N
- -d) 1.183E-13 N
- -e) 1.302E-13 N
5) A circular current loop of radius 1.17 cm carries a current of 3.68 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.179 T?
- -a) 1.585E-07 N m
- -b) 1.743E-07 N m
- -c) 1.918E-07 N m
- -d) 2.110E-07 N m
- +e) 2.321E-07 N m
6) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- -a) 4.908E+00 N/m
- +b) 5.399E+00 N/m
- -c) 5.939E+00 N/m
- -d) 6.533E+00 N/m
- -e) 7.186E+00 N/m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 3.132E+05 m/s
- -b) 3.445E+05 m/s
- -c) 3.790E+05 m/s
- -d) 4.169E+05 m/s
- -e) 4.585E+05 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.378 m and a magneticfield of 0.835 T. What is their maximum kinetic energy?
- -a) 4.365E+00 MeV
- +b) 4.801E+00 MeV
- -c) 5.281E+00 MeV
- -d) 5.809E+00 MeV
- -e) 6.390E+00 MeV
Key: H0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(4.96 i + 6.81 j + 8.66 k) x 104 m/s?
- -a) 9.727E-14 N
- +b) 1.070E-13 N
- -c) 1.177E-13 N
- -d) 1.295E-13 N
- -e) 1.424E-13 N
2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- +a) 6.080E-06 s
- -b) 6.688E-06 s
- -c) 7.356E-06 s
- -d) 8.092E-06 s
- -e) 8.901E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?
- -a) 2.596E-01 A
- -b) 2.855E-01 A
- +c) 3.141E-01 A
- -d) 3.455E-01 A
- -e) 3.801E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- -a) 1.510E+00 N/m
- +b) 1.661E+00 N/m
- -c) 1.827E+00 N/m
- -d) 2.010E+00 N/m
- -e) 2.211E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- +a) 7.629E-07 N m
- -b) 8.392E-07 N m
- -c) 9.232E-07 N m
- -d) 1.015E-06 N m
- -e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.362E+06 m/s
- -b) 1.498E+06 m/s
- -c) 1.647E+06 m/s
- -d) 1.812E+06 m/s
- -e) 1.993E+06 m/s
- +a) 7.202E-06 V
- -b) 7.922E-06 V
- -c) 8.714E-06 V
- -d) 9.586E-06 V
- -e) 1.054E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- -a) 5.798E+00 MeV
- +b) 6.377E+00 MeV
- -c) 7.015E+00 MeV
- -d) 7.717E+00 MeV
- -e) 8.488E+00 MeV
Key: H1
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
- -a) 1.648E-06 V
- -b) 1.813E-06 V
- -c) 1.994E-06 V
- +d) 2.194E-06 V
- -e) 2.413E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
4) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s
5) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
7) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.627E-06 s
- +b) 1.790E-06 s
- -c) 1.969E-06 s
- -d) 2.166E-06 s
- -e) 2.382E-06 s
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
Key: H2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- -a) 3.245E-07 s
- -b) 3.569E-07 s
- +c) 3.926E-07 s
- -d) 4.319E-07 s
- -e) 4.751E-07 s
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- -a) 2.853E+00 MeV
- +b) 3.139E+00 MeV
- -c) 3.453E+00 MeV
- -d) 3.798E+00 MeV
- -e) 4.178E+00 MeV
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- -a) 2.222E-14 N
- -b) 2.444E-14 N
- -c) 2.688E-14 N
- +d) 2.957E-14 N
- -e) 3.253E-14 N
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- -a) 1.062E+00 N/m
- -b) 1.168E+00 N/m
- -c) 1.285E+00 N/m
- -d) 1.413E+00 N/m
- +e) 1.555E+00 N/m
6) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- +a) 1.141E-05 s
- -b) 1.255E-05 s
- -c) 1.381E-05 s
- -d) 1.519E-05 s
- -e) 1.671E-05 s
7) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- -a) 4.963E-01 A
- -b) 5.459E-01 A
- +c) 6.005E-01 A
- -d) 6.605E-01 A
- -e) 7.266E-01 A
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.671E+06 m/s
- -b) 1.838E+06 m/s
- -c) 2.022E+06 m/s
- +d) 2.225E+06 m/s
- -e) 2.447E+06 m/s
9) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- -a) 1.903E-07 N m
- -b) 2.093E-07 N m
- +c) 2.302E-07 N m
- -d) 2.532E-07 N m
- -e) 2.785E-07 N m
Key: I0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.36 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.25 i + 7.71 j + 2.91 k) x 104 m/s?
- -a) 8.890E-14 N
- -b) 9.779E-14 N
- +c) 1.076E-13 N
- -d) 1.183E-13 N
- -e) 1.302E-13 N
2) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- -a) 7.793E-06 s
- -b) 8.572E-06 s
- -c) 9.429E-06 s
- -d) 1.037E-05 s
- +e) 1.141E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- -a) 3.432E-01 A
- -b) 3.775E-01 A
- -c) 4.152E-01 A
- +d) 4.568E-01 A
- -e) 5.024E-01 A
5) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
6) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- +a) 5.610E-07 N m
- -b) 6.171E-07 N m
- -c) 6.788E-07 N m
- -d) 7.467E-07 N m
- -e) 8.213E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.68 mT and 3.200E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 8.971E+05 m/s
- -b) 9.868E+05 m/s
- -c) 1.085E+06 m/s
- +d) 1.194E+06 m/s
- -e) 1.313E+06 m/s
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- -a) 2.853E+00 MeV
- +b) 3.139E+00 MeV
- -c) 3.453E+00 MeV
- -d) 3.798E+00 MeV
- -e) 4.178E+00 MeV
Key: I1
edit- +a) 7.202E-06 V
- -b) 7.922E-06 V
- -c) 8.714E-06 V
- -d) 9.586E-06 V
- -e) 1.054E-05 V
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 5.554E+05 m/s
- -b) 6.110E+05 m/s
- -c) 6.720E+05 m/s
- -d) 7.393E+05 m/s
- -e) 8.132E+05 m/s
3) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
4) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- -a) 2.697E+00 N/m
- -b) 2.967E+00 N/m
- +c) 3.263E+00 N/m
- -d) 3.590E+00 N/m
- -e) 3.948E+00 N/m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
6) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- -a) 2.730E-06 s
- +b) 3.003E-06 s
- -c) 3.303E-06 s
- -d) 3.633E-06 s
- -e) 3.997E-06 s
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.280E-07 s
- -b) 2.508E-07 s
- -c) 2.759E-07 s
- +d) 3.035E-07 s
- -e) 3.339E-07 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- -a) 1.757E-14 N
- +b) 1.933E-14 N
- -c) 2.126E-14 N
- -d) 2.339E-14 N
- -e) 2.573E-14 N
9) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- -a) 1.476E-06 N m
- +b) 1.624E-06 N m
- -c) 1.786E-06 N m
- -d) 1.965E-06 N m
- -e) 2.162E-06 N m
Key: I2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
3) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
4) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- +a) 1.141E-05 s
- -b) 1.255E-05 s
- -c) 1.381E-05 s
- -d) 1.519E-05 s
- -e) 1.671E-05 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- -a) 2.853E+00 MeV
- +b) 3.139E+00 MeV
- -c) 3.453E+00 MeV
- -d) 3.798E+00 MeV
- -e) 4.178E+00 MeV
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- -a) 1.828E-14 N
- -b) 2.010E-14 N
- -c) 2.211E-14 N
- -d) 2.433E-14 N
- +e) 2.676E-14 N
7) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
8) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- -a) 3.106E-01 A
- +b) 3.416E-01 A
- -c) 3.758E-01 A
- -d) 4.134E-01 A
- -e) 4.547E-01 A
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
Key: J0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- -a) 5.296E-14 N
- -b) 5.826E-14 N
- +c) 6.408E-14 N
- -d) 7.049E-14 N
- -e) 7.754E-14 N
2) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.280E-07 s
- -b) 2.508E-07 s
- -c) 2.759E-07 s
- +d) 3.035E-07 s
- -e) 3.339E-07 s
4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- -a) 3.432E-01 A
- -b) 3.775E-01 A
- -c) 4.152E-01 A
- +d) 4.568E-01 A
- -e) 5.024E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- -a) 1.131E+00 N/m
- -b) 1.244E+00 N/m
- -c) 1.368E+00 N/m
- +d) 1.505E+00 N/m
- -e) 1.655E+00 N/m
6) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- +a) 7.629E-07 N m
- -b) 8.392E-07 N m
- -c) 9.232E-07 N m
- -d) 1.015E-06 N m
- -e) 1.117E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- -a) 1.746E-06 V
- -b) 1.921E-06 V
- -c) 2.113E-06 V
- -d) 2.324E-06 V
- +e) 2.557E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- -a) 6.029E+00 MeV
- -b) 6.631E+00 MeV
- -c) 7.295E+00 MeV
- +d) 8.024E+00 MeV
- -e) 8.827E+00 MeV
Key: J1
edit1) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?
- -a) 3.432E-01 A
- -b) 3.775E-01 A
- -c) 4.152E-01 A
- +d) 4.568E-01 A
- -e) 5.024E-01 A
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- -a) 4.096E+00 N/m
- +b) 4.505E+00 N/m
- -c) 4.956E+00 N/m
- -d) 5.451E+00 N/m
- -e) 5.996E+00 N/m
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
4) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?
- +a) 1.022E-06 N m
- -b) 1.124E-06 N m
- -c) 1.236E-06 N m
- -d) 1.360E-06 N m
- -e) 1.496E-06 N m
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.070E+06 m/s
- -b) 1.177E+06 m/s
- -c) 1.295E+06 m/s
- -d) 1.424E+06 m/s
- -e) 1.566E+06 m/s
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
7) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- -a) 2.189E-05 s
- +b) 2.408E-05 s
- -c) 2.649E-05 s
- -d) 2.914E-05 s
- -e) 3.205E-05 s
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.105E-07 s
- +b) 4.515E-07 s
- -c) 4.967E-07 s
- -d) 5.464E-07 s
- -e) 6.010E-07 s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
Key: J2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- +a) 5.610E-07 N m
- -b) 6.171E-07 N m
- -c) 6.788E-07 N m
- -d) 7.467E-07 N m
- -e) 8.213E-07 N m
3) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- -a) 1.174E+00 A
- -b) 1.291E+00 A
- -c) 1.420E+00 A
- -d) 1.562E+00 A
- +e) 1.719E+00 A
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- +a) 1.064E-13 N
- -b) 1.171E-13 N
- -c) 1.288E-13 N
- -d) 1.417E-13 N
- -e) 1.558E-13 N
5) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- +a) 1.141E-05 s
- -b) 1.255E-05 s
- -c) 1.381E-05 s
- -d) 1.519E-05 s
- -e) 1.671E-05 s
6) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
- -a) 1.193E-06 V
- -b) 1.313E-06 V
- -c) 1.444E-06 V
- -d) 1.588E-06 V
- +e) 1.747E-06 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.070E+06 m/s
- -b) 1.177E+06 m/s
- -c) 1.295E+06 m/s
- -d) 1.424E+06 m/s
- -e) 1.566E+06 m/s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- -a) 6.029E+00 MeV
- -b) 6.631E+00 MeV
- -c) 7.295E+00 MeV
- +d) 8.024E+00 MeV
- -e) 8.827E+00 MeV
Key: K0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- -a) 1.386E-13 N
- +b) 1.524E-13 N
- -c) 1.676E-13 N
- -d) 1.844E-13 N
- -e) 2.029E-13 N
2) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- +a) 1.062E-05 s
- -b) 1.168E-05 s
- -c) 1.285E-05 s
- -d) 1.413E-05 s
- -e) 1.555E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
4) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
Key: K1
edit1) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- +a) 5.560E-06 s
- -b) 6.116E-06 s
- -c) 6.728E-06 s
- -d) 7.401E-06 s
- -e) 8.141E-06 s
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- -a) 5.296E-14 N
- -b) 5.826E-14 N
- +c) 6.408E-14 N
- -d) 7.049E-14 N
- -e) 7.754E-14 N
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 7.270E-07 s
- -b) 7.997E-07 s
- -c) 8.797E-07 s
- -d) 9.676E-07 s
- +e) 1.064E-06 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
- -a) 6.100E-06 V
- -b) 6.710E-06 V
- -c) 7.381E-06 V
- -d) 8.120E-06 V
- +e) 8.931E-06 V
7) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
8) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.671E+06 m/s
- -b) 1.838E+06 m/s
- -c) 2.022E+06 m/s
- +d) 2.225E+06 m/s
- -e) 2.447E+06 m/s
Key: K2
edit- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- -a) 1.828E-14 N
- -b) 2.010E-14 N
- -c) 2.211E-14 N
- -d) 2.433E-14 N
- +e) 2.676E-14 N
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
5) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.671E+06 m/s
- -b) 1.838E+06 m/s
- -c) 2.022E+06 m/s
- +d) 2.225E+06 m/s
- -e) 2.447E+06 m/s
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- -a) 1.004E+00 MeV
- -b) 1.104E+00 MeV
- -c) 1.215E+00 MeV
- -d) 1.336E+00 MeV
- +e) 1.470E+00 MeV
8) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
9) A 42 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.48 T. What current is required to maintain this balance?
- -a) 2.812E-01 A
- -b) 3.093E-01 A
- +c) 3.403E-01 A
- -d) 3.743E-01 A
- -e) 4.117E-01 A
Key: L0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- -a) 4.419E-14 N
- -b) 4.861E-14 N
- -c) 5.347E-14 N
- +d) 5.882E-14 N
- -e) 6.470E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
6) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- -a) 1.903E-07 N m
- -b) 2.093E-07 N m
- +c) 2.302E-07 N m
- -d) 2.532E-07 N m
- -e) 2.785E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
Key: L1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- -a) 1.386E-13 N
- +b) 1.524E-13 N
- -c) 1.676E-13 N
- -d) 1.844E-13 N
- -e) 2.029E-13 N
2) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.070E+06 m/s
- -b) 1.177E+06 m/s
- -c) 1.295E+06 m/s
- -d) 1.424E+06 m/s
- -e) 1.566E+06 m/s
- +a) 8.660E-06 V
- -b) 9.526E-06 V
- -c) 1.048E-05 V
- -d) 1.153E-05 V
- -e) 1.268E-05 V
5) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- -a) 2.875E+00 MeV
- -b) 3.162E+00 MeV
- -c) 3.479E+00 MeV
- -d) 3.827E+00 MeV
- +e) 4.209E+00 MeV
7) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- +a) 2.009E-07 N m
- -b) 2.210E-07 N m
- -c) 2.431E-07 N m
- -d) 2.674E-07 N m
- -e) 2.941E-07 N m
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.453E-07 s
- -b) 4.898E-07 s
- -c) 5.388E-07 s
- -d) 5.927E-07 s
- -e) 6.519E-07 s
9) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- -a) 2.037E-01 A
- +b) 2.241E-01 A
- -c) 2.465E-01 A
- -d) 2.712E-01 A
- -e) 2.983E-01 A
Key: L2
edit1) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 ° to a uniform magnetic fied of 0.79 T?
- -a) 7.898E-07 N m
- -b) 8.688E-07 N m
- +c) 9.557E-07 N m
- -d) 1.051E-06 N m
- -e) 1.156E-06 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- -a) 1.757E-14 N
- +b) 1.933E-14 N
- -c) 2.126E-14 N
- -d) 2.339E-14 N
- -e) 2.573E-14 N
3) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
5) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- -a) 7.056E-02 A
- -b) 7.762E-02 A
- -c) 8.538E-02 A
- +d) 9.392E-02 A
- -e) 1.033E-01 A
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.280E-07 s
- -b) 2.508E-07 s
- -c) 2.759E-07 s
- +d) 3.035E-07 s
- -e) 3.339E-07 s
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- -a) 1.004E+00 MeV
- -b) 1.104E+00 MeV
- -c) 1.215E+00 MeV
- -d) 1.336E+00 MeV
- +e) 1.470E+00 MeV
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?
- -a) 1.001E+00 N/m
- -b) 1.101E+00 N/m
- +c) 1.211E+00 N/m
- -d) 1.332E+00 N/m
- -e) 1.465E+00 N/m
9) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
Key: M0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
2) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- -a) 2.899E-05 s
- -b) 3.189E-05 s
- +c) 3.508E-05 s
- -d) 3.859E-05 s
- -e) 4.244E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
4) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- -a) 1.174E+00 A
- -b) 1.291E+00 A
- -c) 1.420E+00 A
- -d) 1.562E+00 A
- +e) 1.719E+00 A
5) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
6) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- -a) 1.476E-06 N m
- +b) 1.624E-06 N m
- -c) 1.786E-06 N m
- -d) 1.965E-06 N m
- -e) 2.162E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
Key: M1
edit1) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- -a) 4.908E+00 N/m
- +b) 5.399E+00 N/m
- -c) 5.939E+00 N/m
- -d) 6.533E+00 N/m
- -e) 7.186E+00 N/m
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
4) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- -a) 2.875E+00 MeV
- -b) 3.162E+00 MeV
- -c) 3.479E+00 MeV
- -d) 3.827E+00 MeV
- +e) 4.209E+00 MeV
6) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- +a) 1.113E-07 N m
- -b) 1.224E-07 N m
- -c) 1.347E-07 N m
- -d) 1.481E-07 N m
- -e) 1.629E-07 N m
7) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- -a) 1.956E-01 A
- -b) 2.152E-01 A
- -c) 2.367E-01 A
- -d) 2.604E-01 A
- +e) 2.864E-01 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.105E-07 s
- +b) 4.515E-07 s
- -c) 4.967E-07 s
- -d) 5.464E-07 s
- -e) 6.010E-07 s
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- -a) 5.296E-14 N
- -b) 5.826E-14 N
- +c) 6.408E-14 N
- -d) 7.049E-14 N
- -e) 7.754E-14 N
Key: M2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 5.554E+05 m/s
- -b) 6.110E+05 m/s
- -c) 6.720E+05 m/s
- -d) 7.393E+05 m/s
- -e) 8.132E+05 m/s
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.561E-07 s
- +b) 2.817E-07 s
- -c) 3.099E-07 s
- -d) 3.409E-07 s
- -e) 3.750E-07 s
6) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- +a) 2.847E+00 N/m
- -b) 3.132E+00 N/m
- -c) 3.445E+00 N/m
- -d) 3.789E+00 N/m
- -e) 4.168E+00 N/m
7) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
8) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?
- +a) 6.080E-06 s
- -b) 6.688E-06 s
- -c) 7.356E-06 s
- -d) 8.092E-06 s
- -e) 8.901E-06 s
9) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
Key: N0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(4.96 i + 6.81 j + 8.66 k) x 104 m/s?
- -a) 9.727E-14 N
- +b) 1.070E-13 N
- -c) 1.177E-13 N
- -d) 1.295E-13 N
- -e) 1.424E-13 N
2) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?
- -a) 1.644E-01 A
- -b) 1.808E-01 A
- +c) 1.989E-01 A
- -d) 2.188E-01 A
- -e) 2.406E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- -a) 1.062E+00 N/m
- -b) 1.168E+00 N/m
- -c) 1.285E+00 N/m
- -d) 1.413E+00 N/m
- +e) 1.555E+00 N/m
6) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.070E+06 m/s
- -b) 1.177E+06 m/s
- -c) 1.295E+06 m/s
- -d) 1.424E+06 m/s
- -e) 1.566E+06 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
Key: N1
edit1) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- -a) 4.419E-14 N
- -b) 4.861E-14 N
- -c) 5.347E-14 N
- +d) 5.882E-14 N
- -e) 6.470E-14 N
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 2.746E+06 m/s
- -b) 3.021E+06 m/s
- -c) 3.323E+06 m/s
- -d) 3.655E+06 m/s
- -e) 4.020E+06 m/s
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- +a) 5.205E-01 N/m
- -b) 5.725E-01 N/m
- -c) 6.297E-01 N/m
- -d) 6.927E-01 N/m
- -e) 7.620E-01 N/m
6) A circular current loop of radius 1.11 cm carries a current of 4.0 mA. What is the magnitude of the torque if the dipole is oriented at 68 ° to a uniform magnetic fied of 0.173 T?
- -a) 1.866E-07 N m
- -b) 2.052E-07 N m
- -c) 2.258E-07 N m
- +d) 2.484E-07 N m
- -e) 2.732E-07 N m
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
- -a) 1.322E-06 V
- +b) 1.454E-06 V
- -c) 1.600E-06 V
- -d) 1.759E-06 V
- -e) 1.935E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- -a) 5.798E+00 MeV
- +b) 6.377E+00 MeV
- -c) 7.015E+00 MeV
- -d) 7.717E+00 MeV
- -e) 8.488E+00 MeV
Key: N2
edit1) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.676E+06 m/s
- -b) 1.843E+06 m/s
- -c) 2.028E+06 m/s
- -d) 2.230E+06 m/s
- -e) 2.453E+06 m/s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
6) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
7) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
Key: O0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- -a) 1.757E-14 N
- +b) 1.933E-14 N
- -c) 2.126E-14 N
- -d) 2.339E-14 N
- -e) 2.573E-14 N
2) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- +a) 2.847E+00 N/m
- -b) 3.132E+00 N/m
- -c) 3.445E+00 N/m
- -d) 3.789E+00 N/m
- -e) 4.168E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- +a) 5.805E-08 N m
- -b) 6.386E-08 N m
- -c) 7.024E-08 N m
- -d) 7.727E-08 N m
- -e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.829E+05 m/s
- -b) 5.312E+05 m/s
- -c) 5.843E+05 m/s
- +d) 6.427E+05 m/s
- -e) 7.070E+05 m/s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.449 m and a magneticfield of 0.81 T. What is their maximum kinetic energy?
- -a) 5.795E+00 MeV
- +b) 6.374E+00 MeV
- -c) 7.012E+00 MeV
- -d) 7.713E+00 MeV
- -e) 8.484E+00 MeV
Key: O1
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 9.223E+05 m/s
- +b) 1.015E+06 m/s
- -c) 1.116E+06 m/s
- -d) 1.228E+06 m/s
- -e) 1.350E+06 m/s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- -a) 8.137E-07 s
- +b) 8.951E-07 s
- -c) 9.846E-07 s
- -d) 1.083E-06 s
- -e) 1.191E-06 s
3) A charged particle in a magnetic field of 1.480E-04 T is moving perpendicular to the magnetic field with a speed of 4.520E+05 m/s. What is the period of orbit if orbital radius is 0.4 m?
- +a) 5.560E-06 s
- -b) 6.116E-06 s
- -c) 6.728E-06 s
- -d) 7.401E-06 s
- -e) 8.141E-06 s
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?
- -a) 1.004E+00 MeV
- -b) 1.104E+00 MeV
- -c) 1.215E+00 MeV
- -d) 1.336E+00 MeV
- +e) 1.470E+00 MeV
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
6) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- -a) 3.582E-07 N m
- -b) 3.940E-07 N m
- -c) 4.334E-07 N m
- +d) 4.768E-07 N m
- -e) 5.245E-07 N m
7) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.21 i + 5.39 j + 3.81 k) x 104 m/s?
- -a) 4.419E-14 N
- -b) 4.861E-14 N
- -c) 5.347E-14 N
- +d) 5.882E-14 N
- -e) 6.470E-14 N
9) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- -a) 1.174E+00 A
- -b) 1.291E+00 A
- -c) 1.420E+00 A
- -d) 1.562E+00 A
- +e) 1.719E+00 A
Key: O2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- -a) 1.336E+01 MeV
- -b) 1.470E+01 MeV
- -c) 1.617E+01 MeV
- +d) 1.779E+01 MeV
- -e) 1.957E+01 MeV
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(5.64 i + 1.93 j + 8.71 k) x 104 m/s?
- -a) 1.757E-14 N
- +b) 1.933E-14 N
- -c) 2.126E-14 N
- -d) 2.339E-14 N
- -e) 2.573E-14 N
3) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
5) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- +a) 7.327E-06 s
- -b) 8.060E-06 s
- -c) 8.865E-06 s
- -d) 9.752E-06 s
- -e) 1.073E-05 s
6) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
- -a) 6.100E-06 V
- -b) 6.710E-06 V
- -c) 7.381E-06 V
- -d) 8.120E-06 V
- +e) 8.931E-06 V
8) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
Key: P0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- -a) 2.189E-05 s
- +b) 2.408E-05 s
- -c) 2.649E-05 s
- -d) 2.914E-05 s
- -e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.280E-07 s
- -b) 2.508E-07 s
- -c) 2.759E-07 s
- +d) 3.035E-07 s
- -e) 3.339E-07 s
4) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- -a) 3.648E+00 N/m
- -b) 4.012E+00 N/m
- -c) 4.414E+00 N/m
- -d) 4.855E+00 N/m
- +e) 5.341E+00 N/m
6) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- +a) 2.009E-07 N m
- -b) 2.210E-07 N m
- -c) 2.431E-07 N m
- -d) 2.674E-07 N m
- -e) 2.941E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 3.132E+05 m/s
- -b) 3.445E+05 m/s
- -c) 3.790E+05 m/s
- -d) 4.169E+05 m/s
- -e) 4.585E+05 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
Key: P1
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.453E-07 s
- -b) 4.898E-07 s
- -c) 5.388E-07 s
- -d) 5.927E-07 s
- -e) 6.519E-07 s
2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s
3) A 14 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.448 T. What current is required to maintain this balance?
- -a) 1.174E+00 A
- -b) 1.291E+00 A
- -c) 1.420E+00 A
- -d) 1.562E+00 A
- +e) 1.719E+00 A
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
5) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
6) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- -a) 1.510E+00 N/m
- +b) 1.661E+00 N/m
- -c) 1.827E+00 N/m
- -d) 2.010E+00 N/m
- -e) 2.211E+00 N/m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
8) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 ° to a uniform magnetic fied of 0.107 T?
- +a) 7.629E-07 N m
- -b) 8.392E-07 N m
- -c) 9.232E-07 N m
- -d) 1.015E-06 N m
- -e) 1.117E-06 N m
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
Key: P2
edit- -a) 1.648E-06 V
- -b) 1.813E-06 V
- -c) 1.994E-06 V
- +d) 2.194E-06 V
- -e) 2.413E-06 V
2) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.060E+06 m/s
- -b) 1.166E+06 m/s
- -c) 1.282E+06 m/s
- -d) 1.411E+06 m/s
- +e) 1.552E+06 m/s
3) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
5) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.819E-07 s
- -b) 3.101E-07 s
- +c) 3.411E-07 s
- -d) 3.752E-07 s
- -e) 4.128E-07 s
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
7) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- +a) 1.062E-05 s
- -b) 1.168E-05 s
- -c) 1.285E-05 s
- -d) 1.413E-05 s
- -e) 1.555E-05 s
8) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- -a) 1.828E-14 N
- -b) 2.010E-14 N
- -c) 2.211E-14 N
- -d) 2.433E-14 N
- +e) 2.676E-14 N
9) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- -a) 1.510E+00 N/m
- +b) 1.661E+00 N/m
- -c) 1.827E+00 N/m
- -d) 2.010E+00 N/m
- -e) 2.211E+00 N/m
Key: Q0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
2) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?
- -a) 3.805E-06 s
- +b) 4.185E-06 s
- -c) 4.604E-06 s
- -d) 5.064E-06 s
- -e) 5.571E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.629E-07 s
- -b) 5.092E-07 s
- -c) 5.601E-07 s
- +d) 6.161E-07 s
- -e) 6.777E-07 s
4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- +a) 5.205E-01 N/m
- -b) 5.725E-01 N/m
- -c) 6.297E-01 N/m
- -d) 6.927E-01 N/m
- -e) 7.620E-01 N/m
6) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 ° to a uniform magnetic fied of 0.523 T?
- -a) 2.699E-06 N m
- -b) 2.969E-06 N m
- -c) 3.266E-06 N m
- -d) 3.593E-06 N m
- +e) 3.952E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 3.132E+05 m/s
- -b) 3.445E+05 m/s
- -c) 3.790E+05 m/s
- -d) 4.169E+05 m/s
- -e) 4.585E+05 m/s
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
Key: Q1
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- +a) 4.791E-07 s
- -b) 5.271E-07 s
- -c) 5.798E-07 s
- -d) 6.377E-07 s
- -e) 7.015E-07 s
2) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
4) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 ° to a uniform magnetic fied of 0.415 T?
- +a) 1.387E-06 N m
- -b) 1.526E-06 N m
- -c) 1.679E-06 N m
- -d) 1.847E-06 N m
- -e) 2.031E-06 N m
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?
- -a) 5.798E+00 MeV
- +b) 6.377E+00 MeV
- -c) 7.015E+00 MeV
- -d) 7.717E+00 MeV
- -e) 8.488E+00 MeV
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
8) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 5.554E+05 m/s
- -b) 6.110E+05 m/s
- -c) 6.720E+05 m/s
- -d) 7.393E+05 m/s
- -e) 8.132E+05 m/s
Key: Q2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 5.554E+05 m/s
- -b) 6.110E+05 m/s
- -c) 6.720E+05 m/s
- -d) 7.393E+05 m/s
- -e) 8.132E+05 m/s
2) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- -a) 4.784E-06 s
- +b) 5.262E-06 s
- -c) 5.788E-06 s
- -d) 6.367E-06 s
- -e) 7.004E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.940E-06 s
- -b) 2.134E-06 s
- -c) 2.347E-06 s
- +d) 2.582E-06 s
- -e) 2.840E-06 s
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- -a) 6.029E+00 MeV
- -b) 6.631E+00 MeV
- -c) 7.295E+00 MeV
- +d) 8.024E+00 MeV
- -e) 8.827E+00 MeV
5) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
6) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- -a) 1.956E-01 A
- -b) 2.152E-01 A
- -c) 2.367E-01 A
- -d) 2.604E-01 A
- +e) 2.864E-01 A
- -a) 1.193E-06 V
- -b) 1.313E-06 V
- -c) 1.444E-06 V
- -d) 1.588E-06 V
- +e) 1.747E-06 V
8) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- -a) 2.697E+00 N/m
- -b) 2.967E+00 N/m
- +c) 3.263E+00 N/m
- -d) 3.590E+00 N/m
- -e) 3.948E+00 N/m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- -a) 5.296E-14 N
- -b) 5.826E-14 N
- +c) 6.408E-14 N
- -d) 7.049E-14 N
- -e) 7.754E-14 N
Key: R0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- -a) 7.509E-14 N
- -b) 8.259E-14 N
- +c) 9.085E-14 N
- -d) 9.994E-14 N
- -e) 1.099E-13 N
2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?
- -a) 2.189E-05 s
- +b) 2.408E-05 s
- -c) 2.649E-05 s
- -d) 2.914E-05 s
- -e) 3.205E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.940E-06 s
- -b) 2.134E-06 s
- -c) 2.347E-06 s
- +d) 2.582E-06 s
- -e) 2.840E-06 s
4) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- -a) 1.956E-01 A
- -b) 2.152E-01 A
- -c) 2.367E-01 A
- -d) 2.604E-01 A
- +e) 2.864E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
6) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- -a) 1.336E+01 MeV
- -b) 1.470E+01 MeV
- -c) 1.617E+01 MeV
- +d) 1.779E+01 MeV
- -e) 1.957E+01 MeV
Key: R1
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.629E-07 s
- -b) 5.092E-07 s
- -c) 5.601E-07 s
- +d) 6.161E-07 s
- -e) 6.777E-07 s
3) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?
- -a) 2.730E-06 s
- +b) 3.003E-06 s
- -c) 3.303E-06 s
- -d) 3.633E-06 s
- -e) 3.997E-06 s
4) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48° away from the wire?
- -a) 1.131E+00 N/m
- -b) 1.244E+00 N/m
- -c) 1.368E+00 N/m
- +d) 1.505E+00 N/m
- -e) 1.655E+00 N/m
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
7) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
8) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
Key: R2
edit1) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.095E-06 s
- +b) 2.305E-06 s
- -c) 2.535E-06 s
- -d) 2.789E-06 s
- -e) 3.067E-06 s
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
3) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
4) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 ° to a uniform magnetic fied of 0.184 T?
- +a) 5.610E-07 N m
- -b) 6.171E-07 N m
- -c) 6.788E-07 N m
- -d) 7.467E-07 N m
- -e) 8.213E-07 N m
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
6) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
- +a) 7.202E-06 V
- -b) 7.922E-06 V
- -c) 8.714E-06 V
- -d) 9.586E-06 V
- -e) 1.054E-05 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
9) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- -a) 3.648E+00 N/m
- -b) 4.012E+00 N/m
- -c) 4.414E+00 N/m
- -d) 4.855E+00 N/m
- +e) 5.341E+00 N/m
Key: S0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.55 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.96 i + 1.68 j + 6.92 k) x 104 m/s?
- -a) 4.179E-14 N
- +b) 4.596E-14 N
- -c) 5.056E-14 N
- -d) 5.562E-14 N
- -e) 6.118E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.095E-06 s
- +b) 2.305E-06 s
- -c) 2.535E-06 s
- -d) 2.789E-06 s
- -e) 3.067E-06 s
4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
5) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26° away from the wire?
- -a) 3.840E-01 N/m
- -b) 4.224E-01 N/m
- +c) 4.647E-01 N/m
- -d) 5.111E-01 N/m
- -e) 5.623E-01 N/m
6) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 ° to a uniform magnetic fied of 0.125 T?
- +a) 2.009E-07 N m
- -b) 2.210E-07 N m
- -c) 2.431E-07 N m
- -d) 2.674E-07 N m
- -e) 2.941E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.676E+06 m/s
- -b) 1.843E+06 m/s
- -c) 2.028E+06 m/s
- -d) 2.230E+06 m/s
- -e) 2.453E+06 m/s
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?
- -a) 8.881E+00 MeV
- -b) 9.769E+00 MeV
- -c) 1.075E+01 MeV
- -d) 1.182E+01 MeV
- +e) 1.300E+01 MeV
Key: S1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- -a) 7.509E-14 N
- -b) 8.259E-14 N
- +c) 9.085E-14 N
- -d) 9.994E-14 N
- -e) 1.099E-13 N
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
3) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
4) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- +a) 1.113E-07 N m
- -b) 1.224E-07 N m
- -c) 1.347E-07 N m
- -d) 1.481E-07 N m
- -e) 1.629E-07 N m
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- -a) 4.908E+00 N/m
- +b) 5.399E+00 N/m
- -c) 5.939E+00 N/m
- -d) 6.533E+00 N/m
- -e) 7.186E+00 N/m
- -a) 1.648E-06 V
- -b) 1.813E-06 V
- -c) 1.994E-06 V
- +d) 2.194E-06 V
- -e) 2.413E-06 V
7) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- -a) 6.029E+00 MeV
- -b) 6.631E+00 MeV
- -c) 7.295E+00 MeV
- +d) 8.024E+00 MeV
- -e) 8.827E+00 MeV
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.362E+06 m/s
- -b) 1.498E+06 m/s
- -c) 1.647E+06 m/s
- -d) 1.812E+06 m/s
- -e) 1.993E+06 m/s
9) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- +a) 1.062E-05 s
- -b) 1.168E-05 s
- -c) 1.285E-05 s
- -d) 1.413E-05 s
- -e) 1.555E-05 s
Key: S2
edit1) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.829E+05 m/s
- -b) 5.312E+05 m/s
- -c) 5.843E+05 m/s
- +d) 6.427E+05 m/s
- -e) 7.070E+05 m/s
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?
- -a) 2.853E+00 MeV
- +b) 3.139E+00 MeV
- -c) 3.453E+00 MeV
- -d) 3.798E+00 MeV
- -e) 4.178E+00 MeV
3) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- +a) 7.327E-06 s
- -b) 8.060E-06 s
- -c) 8.865E-06 s
- -d) 9.752E-06 s
- -e) 1.073E-05 s
4) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
5) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.280E-07 s
- -b) 2.508E-07 s
- -c) 2.759E-07 s
- +d) 3.035E-07 s
- -e) 3.339E-07 s
7) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
Key: T0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
2) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?
- +a) 1.062E-05 s
- -b) 1.168E-05 s
- -c) 1.285E-05 s
- -d) 1.413E-05 s
- -e) 1.555E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.105E-07 s
- +b) 4.515E-07 s
- -c) 4.967E-07 s
- -d) 5.464E-07 s
- -e) 6.010E-07 s
4) A 92 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 15 g, and the magnitude of the magnetic field is 0.713 T. What current is required to maintain this balance?
- -a) 2.037E-01 A
- +b) 2.241E-01 A
- -c) 2.465E-01 A
- -d) 2.712E-01 A
- -e) 2.983E-01 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47° away from the wire?
- -a) 4.096E+00 N/m
- +b) 4.505E+00 N/m
- -c) 4.956E+00 N/m
- -d) 5.451E+00 N/m
- -e) 5.996E+00 N/m
6) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.676E+06 m/s
- -b) 1.843E+06 m/s
- -c) 2.028E+06 m/s
- -d) 2.230E+06 m/s
- -e) 2.453E+06 m/s
- -a) 6.795E-06 V
- -b) 7.475E-06 V
- -c) 8.222E-06 V
- +d) 9.045E-06 V
- -e) 9.949E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- -a) 8.491E+00 MeV
- -b) 9.340E+00 MeV
- +c) 1.027E+01 MeV
- -d) 1.130E+01 MeV
- -e) 1.243E+01 MeV
Key: T1
edit1) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- +a) 1.141E-05 s
- -b) 1.255E-05 s
- -c) 1.381E-05 s
- -d) 1.519E-05 s
- -e) 1.671E-05 s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- -a) 8.491E+00 MeV
- -b) 9.340E+00 MeV
- +c) 1.027E+01 MeV
- -d) 1.130E+01 MeV
- -e) 1.243E+01 MeV
4) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- -a) 3.245E-07 s
- -b) 3.569E-07 s
- +c) 3.926E-07 s
- -d) 4.319E-07 s
- -e) 4.751E-07 s
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
6) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
8) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
9) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?
- -a) 2.651E-01 A
- -b) 2.916E-01 A
- -c) 3.208E-01 A
- +d) 3.529E-01 A
- -e) 3.882E-01 A
Key: T2
edit1) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- +a) 1.064E-13 N
- -b) 1.171E-13 N
- -c) 1.288E-13 N
- -d) 1.417E-13 N
- -e) 1.558E-13 N
3) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s
4) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22° away from the wire?
- -a) 1.062E+00 N/m
- -b) 1.168E+00 N/m
- -c) 1.285E+00 N/m
- -d) 1.413E+00 N/m
- +e) 1.555E+00 N/m
5) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
6) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- -a) 8.491E+00 MeV
- -b) 9.340E+00 MeV
- +c) 1.027E+01 MeV
- -d) 1.130E+01 MeV
- -e) 1.243E+01 MeV
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.629E-07 s
- -b) 5.092E-07 s
- -c) 5.601E-07 s
- +d) 6.161E-07 s
- -e) 6.777E-07 s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 8.092E+05 m/s
- -b) 8.901E+05 m/s
- -c) 9.791E+05 m/s
- -d) 1.077E+06 m/s
- -e) 1.185E+06 m/s
Key: U0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
2) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- +a) 7.327E-06 s
- -b) 8.060E-06 s
- -c) 8.865E-06 s
- -d) 9.752E-06 s
- -e) 1.073E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?
- -a) 2.225E-01 A
- -b) 2.448E-01 A
- +c) 2.692E-01 A
- -d) 2.962E-01 A
- -e) 3.258E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
6) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 ° to a uniform magnetic fied of 0.415 T?
- +a) 1.387E-06 N m
- -b) 1.526E-06 N m
- -c) 1.679E-06 N m
- -d) 1.847E-06 N m
- -e) 2.031E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.829E+05 m/s
- -b) 5.312E+05 m/s
- -c) 5.843E+05 m/s
- +d) 6.427E+05 m/s
- -e) 7.070E+05 m/s
- -a) 7.153E-07 V
- -b) 7.869E-07 V
- -c) 8.655E-07 V
- +d) 9.521E-07 V
- -e) 1.047E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?
- -a) 7.476E+00 MeV
- -b) 8.224E+00 MeV
- -c) 9.046E+00 MeV
- +d) 9.951E+00 MeV
- -e) 1.095E+01 MeV
Key: U1
edit1) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?
- +a) 7.327E-06 s
- -b) 8.060E-06 s
- -c) 8.865E-06 s
- -d) 9.752E-06 s
- -e) 1.073E-05 s
2) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65° away from the wire?
- -a) 4.908E+00 N/m
- +b) 5.399E+00 N/m
- -c) 5.939E+00 N/m
- -d) 6.533E+00 N/m
- -e) 7.186E+00 N/m
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?
- -a) 8.491E+00 MeV
- -b) 9.340E+00 MeV
- +c) 1.027E+01 MeV
- -d) 1.130E+01 MeV
- -e) 1.243E+01 MeV
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.829E+05 m/s
- -b) 5.312E+05 m/s
- -c) 5.843E+05 m/s
- +d) 6.427E+05 m/s
- -e) 7.070E+05 m/s
5) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
- -a) 1.560E-06 V
- +b) 1.716E-06 V
- -c) 1.888E-06 V
- -d) 2.077E-06 V
- -e) 2.284E-06 V
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.561E-07 s
- +b) 2.817E-07 s
- -c) 3.099E-07 s
- -d) 3.409E-07 s
- -e) 3.750E-07 s
9) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- +a) 1.113E-07 N m
- -b) 1.224E-07 N m
- -c) 1.347E-07 N m
- -d) 1.481E-07 N m
- -e) 1.629E-07 N m
Key: U2
edit1) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?
- -a) 3.106E-01 A
- +b) 3.416E-01 A
- -c) 3.758E-01 A
- -d) 4.134E-01 A
- -e) 4.547E-01 A
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.819E-07 s
- -b) 3.101E-07 s
- +c) 3.411E-07 s
- -d) 3.752E-07 s
- -e) 4.128E-07 s
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?
- -a) 1.336E+01 MeV
- -b) 1.470E+01 MeV
- -c) 1.617E+01 MeV
- +d) 1.779E+01 MeV
- -e) 1.957E+01 MeV
4) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?
- +a) 1.688E-05 s
- -b) 1.856E-05 s
- -c) 2.042E-05 s
- -d) 2.246E-05 s
- -e) 2.471E-05 s
5) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- -a) 3.582E-07 N m
- -b) 3.940E-07 N m
- -c) 4.334E-07 N m
- +d) 4.768E-07 N m
- -e) 5.245E-07 N m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 1.060E+06 m/s
- -b) 1.166E+06 m/s
- -c) 1.282E+06 m/s
- -d) 1.411E+06 m/s
- +e) 1.552E+06 m/s
7) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.85 i + 1.28 j + 8.49 k) x 104 m/s?
- -a) 2.222E-14 N
- -b) 2.444E-14 N
- -c) 2.688E-14 N
- +d) 2.957E-14 N
- -e) 3.253E-14 N
8) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14° away from the wire?
- -a) 6.302E-01 N/m
- -b) 6.932E-01 N/m
- +c) 7.625E-01 N/m
- -d) 8.388E-01 N/m
- -e) 9.227E-01 N/m
- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
Key: V0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- -a) 2.576E-14 N
- -b) 2.834E-14 N
- -c) 3.117E-14 N
- -d) 3.429E-14 N
- +e) 3.772E-14 N
2) A charged particle in a magnetic field of 4.130E-04 T is moving perpendicular to the magnetic field with a speed of 4.710E+05 m/s. What is the period of orbit if orbital radius is 0.458 m?
- +a) 6.110E-06 s
- -b) 6.721E-06 s
- -c) 7.393E-06 s
- -d) 8.132E-06 s
- -e) 8.945E-06 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- -a) 8.137E-07 s
- +b) 8.951E-07 s
- -c) 9.846E-07 s
- -d) 1.083E-06 s
- -e) 1.191E-06 s
4) A 82 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 11 g, and the magnitude of the magnetic field is 0.459 T. What current is required to maintain this balance?
- -a) 1.956E-01 A
- -b) 2.152E-01 A
- -c) 2.367E-01 A
- -d) 2.604E-01 A
- +e) 2.864E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 8.092E+05 m/s
- -b) 8.901E+05 m/s
- -c) 9.791E+05 m/s
- -d) 1.077E+06 m/s
- -e) 1.185E+06 m/s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- -a) 4.914E-01 MeV
- -b) 5.406E-01 MeV
- -c) 5.946E-01 MeV
- +d) 6.541E-01 MeV
- -e) 7.195E-01 MeV
Key: V1
edit- -a) 2.275E-06 V
- +b) 2.502E-06 V
- -c) 2.752E-06 V
- -d) 3.027E-06 V
- -e) 3.330E-06 V
2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
3) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70° away from the wire?
- -a) 2.348E+00 N/m
- -b) 2.583E+00 N/m
- +c) 2.842E+00 N/m
- -d) 3.126E+00 N/m
- -e) 3.438E+00 N/m
4) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
5) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(3.84 i + 8.79 j + 9.05 k) x 104 m/s?
- -a) 7.509E-14 N
- -b) 8.259E-14 N
- +c) 9.085E-14 N
- -d) 9.994E-14 N
- -e) 1.099E-13 N
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.629E-07 s
- -b) 5.092E-07 s
- -c) 5.601E-07 s
- +d) 6.161E-07 s
- -e) 6.777E-07 s
8) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- -a) 2.899E-05 s
- -b) 3.189E-05 s
- +c) 3.508E-05 s
- -d) 3.859E-05 s
- -e) 4.244E-05 s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
Key: V2
edit1) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?
- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
- -a) 1.375E-05 V
- +b) 1.513E-05 V
- -c) 1.664E-05 V
- -d) 1.831E-05 V
- -e) 2.014E-05 V
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.16 i + 2.1 j + 1.74 k) x 104 m/s?
- -a) 4.783E-14 N
- +b) 5.262E-14 N
- -c) 5.788E-14 N
- -d) 6.367E-14 N
- -e) 7.003E-14 N
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14° away from the wire?
- -a) 6.302E-01 N/m
- -b) 6.932E-01 N/m
- +c) 7.625E-01 N/m
- -d) 8.388E-01 N/m
- -e) 9.227E-01 N/m
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.504E+06 m/s
- -b) 1.655E+06 m/s
- -c) 1.820E+06 m/s
- -d) 2.002E+06 m/s
- -e) 2.202E+06 m/s
7) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
8) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 ° to a uniform magnetic fied of 0.24 T?
- -a) 3.582E-07 N m
- -b) 3.940E-07 N m
- -c) 4.334E-07 N m
- +d) 4.768E-07 N m
- -e) 5.245E-07 N m
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- -a) 2.875E+00 MeV
- -b) 3.162E+00 MeV
- -c) 3.479E+00 MeV
- -d) 3.827E+00 MeV
- +e) 4.209E+00 MeV
Key: W0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.561E-07 s
- +b) 2.817E-07 s
- -c) 3.099E-07 s
- -d) 3.409E-07 s
- -e) 3.750E-07 s
4) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?
- -a) 3.999E-01 A
- -b) 4.398E-01 A
- -c) 4.838E-01 A
- -d) 5.322E-01 A
- +e) 5.854E-01 A
5) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?
- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m
6) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 ° to a uniform magnetic fied of 0.189 T?
- +a) 1.113E-07 N m
- -b) 1.224E-07 N m
- -c) 1.347E-07 N m
- -d) 1.481E-07 N m
- -e) 1.629E-07 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?
- -a) 6.534E+00 MeV
- -b) 7.187E+00 MeV
- -c) 7.906E+00 MeV
- +d) 8.697E+00 MeV
- -e) 9.566E+00 MeV
Key: W1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.13 i + 3.24 j + 6.96 k) x 104 m/s?
- -a) 7.691E-14 N
- +b) 8.460E-14 N
- -c) 9.306E-14 N
- -d) 1.024E-13 N
- -e) 1.126E-13 N
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- -a) 4.914E-01 MeV
- -b) 5.406E-01 MeV
- -c) 5.946E-01 MeV
- +d) 6.541E-01 MeV
- -e) 7.195E-01 MeV
3) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- -a) 3.648E+00 N/m
- -b) 4.012E+00 N/m
- -c) 4.414E+00 N/m
- -d) 4.855E+00 N/m
- +e) 5.341E+00 N/m
4) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?
- -a) 1.903E-07 N m
- -b) 2.093E-07 N m
- +c) 2.302E-07 N m
- -d) 2.532E-07 N m
- -e) 2.785E-07 N m
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
6) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
7) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.212E-07 s
- -b) 1.333E-07 s
- -c) 1.466E-07 s
- -d) 1.613E-07 s
- +e) 1.774E-07 s
8) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?
- -a) 4.784E-06 s
- +b) 5.262E-06 s
- -c) 5.788E-06 s
- -d) 6.367E-06 s
- -e) 7.004E-06 s
9) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 9.223E+05 m/s
- +b) 1.015E+06 m/s
- -c) 1.116E+06 m/s
- -d) 1.228E+06 m/s
- -e) 1.350E+06 m/s
Key: W2
edit1) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
2) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.82 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(7.64 i + 4.85 j + 6.02 k) x 104 m/s?
- -a) 1.386E-13 N
- +b) 1.524E-13 N
- -c) 1.676E-13 N
- -d) 1.844E-13 N
- -e) 2.029E-13 N
3) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?
- -a) 5.076E-01 A
- +b) 5.584E-01 A
- -c) 6.142E-01 A
- -d) 6.757E-01 A
- -e) 7.432E-01 A
4) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 4.982E+05 m/s
- -b) 5.480E+05 m/s
- -c) 6.028E+05 m/s
- +d) 6.631E+05 m/s
- -e) 7.294E+05 m/s
- +a) 8.660E-06 V
- -b) 9.526E-06 V
- -c) 1.048E-05 V
- -d) 1.153E-05 V
- -e) 1.268E-05 V
7) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?
- -a) 7.793E-06 s
- -b) 8.572E-06 s
- -c) 9.429E-06 s
- -d) 1.037E-05 s
- +e) 1.141E-05 s
8) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.578 T magnetic field is directed 38° away from the wire?
- +a) 2.847E+00 N/m
- -b) 3.132E+00 N/m
- -c) 3.445E+00 N/m
- -d) 3.789E+00 N/m
- -e) 4.168E+00 N/m
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.819E-07 s
- -b) 3.101E-07 s
- +c) 3.411E-07 s
- -d) 3.752E-07 s
- -e) 4.128E-07 s
Key: X0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(8.9 i + 4.27 j + 7.52 k) x 104 m/s?
- -a) 5.296E-14 N
- -b) 5.826E-14 N
- +c) 6.408E-14 N
- -d) 7.049E-14 N
- -e) 7.754E-14 N
2) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- -a) 4.963E-01 A
- -b) 5.459E-01 A
- +c) 6.005E-01 A
- -d) 6.605E-01 A
- -e) 7.266E-01 A
5) A long rigid wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46° away from the wire?
- -a) 2.417E+00 N/m
- -b) 2.659E+00 N/m
- -c) 2.924E+00 N/m
- +d) 3.217E+00 N/m
- -e) 3.539E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- +a) 5.805E-08 N m
- -b) 6.386E-08 N m
- -c) 7.024E-08 N m
- -d) 7.727E-08 N m
- -e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 8.092E+05 m/s
- -b) 8.901E+05 m/s
- -c) 9.791E+05 m/s
- -d) 1.077E+06 m/s
- -e) 1.185E+06 m/s
- -a) 1.375E-05 V
- +b) 1.513E-05 V
- -c) 1.664E-05 V
- -d) 1.831E-05 V
- -e) 2.014E-05 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?
- -a) 6.029E+00 MeV
- -b) 6.631E+00 MeV
- -c) 7.295E+00 MeV
- +d) 8.024E+00 MeV
- -e) 8.827E+00 MeV
Key: X1
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
2) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- -a) 8.520E-01 N/m
- -b) 9.372E-01 N/m
- -c) 1.031E+00 N/m
- +d) 1.134E+00 N/m
- -e) 1.247E+00 N/m
3) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?
- +a) 6.626E-01 A
- -b) 7.289E-01 A
- -c) 8.018E-01 A
- -d) 8.819E-01 A
- -e) 9.701E-01 A
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 1.504E+06 m/s
- -b) 1.655E+06 m/s
- -c) 1.820E+06 m/s
- -d) 2.002E+06 m/s
- -e) 2.202E+06 m/s
- -a) 6.795E-06 V
- -b) 7.475E-06 V
- -c) 8.222E-06 V
- +d) 9.045E-06 V
- -e) 9.949E-06 V
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82° from its original direction. How much time did it spend in that magnetic field?
- +a) 1.222E-06 s
- -b) 1.344E-06 s
- -c) 1.479E-06 s
- -d) 1.627E-06 s
- -e) 1.789E-06 s
7) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?
- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s
8) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?
- -a) 1.323E+01 MeV
- -b) 1.456E+01 MeV
- +c) 1.601E+01 MeV
- -d) 1.761E+01 MeV
- -e) 1.937E+01 MeV
9) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
Key: X2
edit1) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
2) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.897E-07 s
- -b) 2.087E-07 s
- -c) 2.296E-07 s
- +d) 2.525E-07 s
- -e) 2.778E-07 s
3) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
4) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.97 i + 8.52 j + 9.46 k) x 104 m/s?
- -a) 2.199E-13 N
- -b) 2.419E-13 N
- +c) 2.661E-13 N
- -d) 2.927E-13 N
- -e) 3.220E-13 N
5) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- -a) 4.914E-01 MeV
- -b) 5.406E-01 MeV
- -c) 5.946E-01 MeV
- +d) 6.541E-01 MeV
- -e) 7.195E-01 MeV
6) A 24 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.706 T. What current is required to maintain this balance?
- -a) 5.258E-01 A
- +b) 5.784E-01 A
- -c) 6.362E-01 A
- -d) 6.998E-01 A
- -e) 7.698E-01 A
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 6.804E+05 m/s
- -b) 7.484E+05 m/s
- -c) 8.233E+05 m/s
- -d) 9.056E+05 m/s
- -e) 9.962E+05 m/s
- -a) 9.911E-06 V
- +b) 1.090E-05 V
- -c) 1.199E-05 V
- -d) 1.319E-05 V
- -e) 1.451E-05 V
9) A long rigid wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23° away from the wire?
- +a) 5.205E-01 N/m
- -b) 5.725E-01 N/m
- -c) 6.297E-01 N/m
- -d) 6.927E-01 N/m
- -e) 7.620E-01 N/m
Key: Y0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(2.75 i + 9.06 j + 3.5 k) x 104 m/s?
- -a) 2.899E-14 N
- -b) 3.189E-14 N
- +c) 3.508E-14 N
- -d) 3.859E-14 N
- -e) 4.245E-14 N
2) A charged particle in a magnetic field of 3.350E-04 T is moving perpendicular to the magnetic field with a speed of 4.350E+05 m/s. What is the period of orbit if orbital radius is 0.841 m?
- -a) 1.004E-05 s
- -b) 1.104E-05 s
- +c) 1.215E-05 s
- -d) 1.336E-05 s
- -e) 1.470E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89° from its original direction. How much time did it spend in that magnetic field?
- +a) 9.857E-07 s
- -b) 1.084E-06 s
- -c) 1.193E-06 s
- -d) 1.312E-06 s
- -e) 1.443E-06 s
4) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?
- +a) 1.432E+00 A
- -b) 1.575E+00 A
- -c) 1.732E+00 A
- -d) 1.905E+00 A
- -e) 2.096E+00 A
5) A long rigid wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.783 T magnetic field is directed 77° away from the wire?
- -a) 3.648E+00 N/m
- -b) 4.012E+00 N/m
- -c) 4.414E+00 N/m
- -d) 4.855E+00 N/m
- +e) 5.341E+00 N/m
6) A circular current loop of radius 1.29 cm carries a current of 1.75 mA. What is the magnitude of the torque if the dipole is oriented at 24 ° to a uniform magnetic fied of 0.156 T?
- +a) 5.805E-08 N m
- -b) 6.386E-08 N m
- -c) 7.024E-08 N m
- -d) 7.727E-08 N m
- -e) 8.499E-08 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
- +a) 5.685E-06 V
- -b) 6.253E-06 V
- -c) 6.878E-06 V
- -d) 7.566E-06 V
- -e) 8.323E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?
- -a) 2.875E+00 MeV
- -b) 3.162E+00 MeV
- -c) 3.479E+00 MeV
- -d) 3.827E+00 MeV
- +e) 4.209E+00 MeV
Key: Y1
edit1) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66° away from the wire?
- -a) 2.697E+00 N/m
- -b) 2.967E+00 N/m
- +c) 3.263E+00 N/m
- -d) 3.590E+00 N/m
- -e) 3.948E+00 N/m
2) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
- -a) 6.104E-06 V
- -b) 6.714E-06 V
- +c) 7.385E-06 V
- -d) 8.124E-06 V
- -e) 8.936E-06 V
4) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- -a) 2.259E-01 A
- -b) 2.485E-01 A
- +c) 2.734E-01 A
- -d) 3.007E-01 A
- -e) 3.308E-01 A
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
6) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67° from its original direction. How much time did it spend in that magnetic field?
- -a) 3.245E-07 s
- -b) 3.569E-07 s
- +c) 3.926E-07 s
- -d) 4.319E-07 s
- -e) 4.751E-07 s
7) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
8) A circular current loop of radius 3.04 cm carries a current of 1.94 mA. What is the magnitude of the torque if the dipole is oriented at 50 ° to a uniform magnetic fied of 0.193 T?
- -a) 6.257E-07 N m
- -b) 6.882E-07 N m
- -c) 7.570E-07 N m
- +d) 8.327E-07 N m
- -e) 9.160E-07 N m
9) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- +a) 1.064E-13 N
- -b) 1.171E-13 N
- -c) 1.288E-13 N
- -d) 1.417E-13 N
- -e) 1.558E-13 N
Key: Y2
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 5.75 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.81 i + 2.05 j + 4.49 k) x 104 m/s?
- -a) 2.576E-14 N
- -b) 2.834E-14 N
- -c) 3.117E-14 N
- -d) 3.429E-14 N
- +e) 3.772E-14 N
2) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?
- -a) 7.056E-02 A
- -b) 7.762E-02 A
- -c) 8.538E-02 A
- +d) 9.392E-02 A
- -e) 1.033E-01 A
3) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
- +a) 7.202E-06 V
- -b) 7.922E-06 V
- -c) 8.714E-06 V
- -d) 9.586E-06 V
- -e) 1.054E-05 V
5) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 2.768E+05 m/s
- -b) 3.045E+05 m/s
- -c) 3.349E+05 m/s
- -d) 3.684E+05 m/s
- +e) 4.052E+05 m/s
6) A long rigid wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53° away from the wire?
- -a) 8.520E-01 N/m
- -b) 9.372E-01 N/m
- -c) 1.031E+00 N/m
- +d) 1.134E+00 N/m
- -e) 1.247E+00 N/m
7) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 ° to a uniform magnetic fied of 0.884 T?
- -a) 1.568E-06 N m
- -b) 1.724E-06 N m
- +c) 1.897E-06 N m
- -d) 2.087E-06 N m
- -e) 2.295E-06 N m
8) A charged particle in a magnetic field of 2.740E-04 T is moving perpendicular to the magnetic field with a speed of 1.390E+05 m/s. What is the period of orbit if orbital radius is 0.776 m?
- -a) 2.899E-05 s
- -b) 3.189E-05 s
- +c) 3.508E-05 s
- -d) 3.859E-05 s
- -e) 4.244E-05 s
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74° from its original direction. How much time did it spend in that magnetic field?
- -a) 4.878E-07 s
- -b) 5.366E-07 s
- +c) 5.903E-07 s
- -d) 6.493E-07 s
- -e) 7.143E-07 s
Key: Z0
edit1) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.92 i + 1.55 j + 6.22 k) x 104 m/s?
- -a) 2.074E-14 N
- +b) 2.282E-14 N
- -c) 2.510E-14 N
- -d) 2.761E-14 N
- -e) 3.037E-14 N
2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?
- +a) 1.141E-05 s
- -b) 1.255E-05 s
- -c) 1.381E-05 s
- -d) 1.519E-05 s
- -e) 1.671E-05 s
3) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73° from its original direction. How much time did it spend in that magnetic field?
- -a) 2.819E-07 s
- -b) 3.101E-07 s
- +c) 3.411E-07 s
- -d) 3.752E-07 s
- -e) 4.128E-07 s
4) A 17 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.768 T. What current is required to maintain this balance?
- -a) 4.963E-01 A
- -b) 5.459E-01 A
- +c) 6.005E-01 A
- -d) 6.605E-01 A
- -e) 7.266E-01 A
5) A long rigid wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33° away from the wire?
- -a) 1.510E+00 N/m
- +b) 1.661E+00 N/m
- -c) 1.827E+00 N/m
- -d) 2.010E+00 N/m
- -e) 2.211E+00 N/m
6) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.174 T?
- -a) 1.075E-06 N m
- +b) 1.182E-06 N m
- -c) 1.301E-06 N m
- -d) 1.431E-06 N m
- -e) 1.574E-06 N m
7) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.66 mT and 2.860E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 5.072E+05 m/s
- -b) 5.579E+05 m/s
- +c) 6.137E+05 m/s
- -d) 6.751E+05 m/s
- -e) 7.426E+05 m/s
- -a) 1.746E-06 V
- -b) 1.921E-06 V
- -c) 2.113E-06 V
- -d) 2.324E-06 V
- +e) 2.557E-06 V
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?
- -a) 7.342E-01 MeV
- -b) 8.076E-01 MeV
- -c) 8.884E-01 MeV
- -d) 9.772E-01 MeV
- +e) 1.075E+00 MeV
Key: Z1
edit1) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
- -a) 6.795E-06 V
- -b) 7.475E-06 V
- -c) 8.222E-06 V
- +d) 9.045E-06 V
- -e) 9.949E-06 V
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(6.7 i + 2.31 j + 7.08 k) x 104 m/s?
- -a) 1.828E-14 N
- -b) 2.010E-14 N
- -c) 2.211E-14 N
- -d) 2.433E-14 N
- +e) 2.676E-14 N
4) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?
- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m
5) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?
- -a) 8.713E-06 s
- -b) 9.584E-06 s
- -c) 1.054E-05 s
- +d) 1.160E-05 s
- -e) 1.276E-05 s
6) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- -a) 9.223E+05 m/s
- +b) 1.015E+06 m/s
- -c) 1.116E+06 m/s
- -d) 1.228E+06 m/s
- -e) 1.350E+06 m/s
7) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?
- +a) 1.432E+00 A
- -b) 1.575E+00 A
- -c) 1.732E+00 A
- -d) 1.905E+00 A
- -e) 2.096E+00 A
8) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65° from its original direction. How much time did it spend in that magnetic field?
- -a) 8.137E-07 s
- +b) 8.951E-07 s
- -c) 9.846E-07 s
- -d) 1.083E-06 s
- -e) 1.191E-06 s
9) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?
- -a) 2.574E-01 MeV
- -b) 2.831E-01 MeV
- +c) 3.114E-01 MeV
- -d) 3.425E-01 MeV
- -e) 3.768E-01 MeV
Key: Z2
edit1) A cyclotron used to accelerate alpha particlesm=6.64 x 10−27kg, q=3.2 x 10−19C) has a radius of 0.125 m and a magneticfield of 0.932 T. What is their maximum kinetic energy?
- -a) 4.914E-01 MeV
- -b) 5.406E-01 MeV
- -c) 5.946E-01 MeV
- +d) 6.541E-01 MeV
- -e) 7.195E-01 MeV
2) A long rigid wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?
- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m
3) An alpha-particle (q=3.2x10−19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.78 T. What is the x-component of the force on the alpha-particle if it is moving with a velocity
(1.43 i + 8.8 j + 4.16 k) x 104 m/s?
- +a) 1.064E-13 N
- -b) 1.171E-13 N
- -c) 1.288E-13 N
- -d) 1.417E-13 N
- -e) 1.558E-13 N
4) An electron beam (m=9.1 x 10−31kg, q=1.6 x 10−19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?
- +a) 2.746E+06 m/s
- -b) 3.021E+06 m/s
- -c) 3.323E+06 m/s
- -d) 3.655E+06 m/s
- -e) 4.020E+06 m/s
5) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?
- -a) 2.259E-01 A
- -b) 2.485E-01 A
- +c) 2.734E-01 A
- -d) 3.007E-01 A
- -e) 3.308E-01 A
- -a) 1.080E-06 V
- -b) 1.188E-06 V
- -c) 1.306E-06 V
- -d) 1.437E-06 V
- +e) 1.581E-06 V
7) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 ° to a uniform magnetic fied of 0.408 T?
- -a) 1.476E-06 N m
- +b) 1.624E-06 N m
- -c) 1.786E-06 N m
- -d) 1.965E-06 N m
- -e) 2.162E-06 N m
8) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?
- -a) 3.154E-05 s
- +b) 3.470E-05 s
- -c) 3.817E-05 s
- -d) 4.198E-05 s
- -e) 4.618E-05 s
9) An alpha-particle (m=6.64x10−27kg, q=3.2x10−19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85° from its original direction. How much time did it spend in that magnetic field?
- -a) 1.627E-06 s
- +b) 1.790E-06 s
- -c) 1.969E-06 s
- -d) 2.166E-06 s
- -e) 2.382E-06 s