# Quizbank/Electricity and Magnetism (calculus based)/c14

calcPhyEMq/c14 ID153287923206 (Study guide)

Exams:

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.

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### c14 A0

1) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

a) 1.071E+00 cm3
b) 1.178E+00 cm3
c) 1.296E+00 cm3
d) 1.425E+00 cm3
e) 1.568E+00 cm3
2) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
a) 6.604E-02 V
b) 7.264E-02 V
c) 7.990E-02 V
d) 8.789E-02 V
e) 9.668E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.96% of its maximum value if ε = 2.64 V , R = 6.37 Ω, and L = 7.33 H?
a) -1.700E+00 s
b) -1.870E+00 s
c) -2.057E+00 s
d) -2.262E+00 s
e) -2.489E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
a) 1.214E+00 V
b) 1.457E+00 V
c) 1.749E+00 V
d) 2.099E+00 V
e) 2.518E+00 V

#### c14 A1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.01% of its maximum value if ε = 1.45 V , R = 4.4 Ω, and L = 2.36 H?
a) -8.659E-01 s
b) -9.525E-01 s
c) -1.048E+00 s
d) -1.153E+00 s
e) -1.268E+00 s
2) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
a) 2.229E-02 V
b) 2.451E-02 V
c) 2.697E-02 V
d) 2.966E-02 V
e) 3.263E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
a) 9.902E-01 V
b) 1.188E+00 V
c) 1.426E+00 V
d) 1.711E+00 V
e) 2.053E+00 V

4) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3

#### c14 A2

1) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 1.342E+00 cm3
b) 1.477E+00 cm3
c) 1.624E+00 cm3
d) 1.787E+00 cm3
e) 1.965E+00 cm3
2) A long solenoid has a length 0.605 meters, radius 4.26 cm, and 597 turns. It surrounds coil of radius 9.08 meters and 12turns. If the current in the solenoid is changing at a rate of 250 A/s, what is the emf induced in the surounding coil?
a) 4.551E-02 V
b) 5.006E-02 V
c) 5.507E-02 V
d) 6.057E-02 V
e) 6.663E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.01 s if ε = 5.75 V , R = 5.73 Ω, and L = 7.46 H?
a) 9.936E-01 V
b) 1.192E+00 V
c) 1.431E+00 V
d) 1.717E+00 V
e) 2.060E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s

### c14 B0

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
a) 5.369E-01 V
b) 6.443E-01 V
c) 7.732E-01 V
d) 9.278E-01 V
e) 1.113E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
a) -3.137E-01 s
b) -3.451E-01 s
c) -3.796E-01 s
d) -4.176E-01 s
e) -4.593E-01 s

4) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 8.932E-01 cm3
b) 9.825E-01 cm3
c) 1.081E+00 cm3
d) 1.189E+00 cm3
e) 1.308E+00 cm3

#### c14 B1

1) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.443E-04 s
b) 5.988E-04 s
c) 6.586E-04 s
d) 7.245E-04 s
e) 7.969E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
a) -1.047E+00 s
b) -1.152E+00 s
c) -1.267E+00 s
d) -1.393E+00 s
e) -1.533E+00 s

3) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

a) 1.097E+00 cm3
b) 1.207E+00 cm3
c) 1.328E+00 cm3
d) 1.460E+00 cm3
e) 1.606E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
a) 3.463E+00 V
b) 4.156E+00 V
c) 4.987E+00 V
d) 5.984E+00 V
e) 7.181E+00 V

#### c14 B2

1) A washer has an inner diameter of 2.6 cm and an outer diamter of 4.17 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.38mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

a) 7.196E-01 cm3
b) 7.916E-01 cm3
c) 8.707E-01 cm3
d) 9.578E-01 cm3
e) 1.054E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
a) 5.736E-01 V
b) 6.884E-01 V
c) 8.260E-01 V
d) 9.912E-01 V
e) 1.189E+00 V

3) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.251E-04 s
b) 5.776E-04 s
c) 6.354E-04 s
d) 6.989E-04 s
e) 7.688E-04 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
a) -9.593E-01 s
b) -1.055E+00 s
c) -1.161E+00 s
d) -1.277E+00 s
e) -1.405E+00 s

### c14 C0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
a) 7.037E-01 V
b) 8.444E-01 V
c) 1.013E+00 V
d) 1.216E+00 V
e) 1.459E+00 V
2) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
a) 6.604E-02 V
b) 7.264E-02 V
c) 7.990E-02 V
d) 8.789E-02 V
e) 9.668E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.65% of its maximum value if ε = 3.62 V , R = 4.07 Ω, and L = 7.19 H?
a) -2.476E+00 s
b) -2.724E+00 s
c) -2.996E+00 s
d) -3.296E+00 s
e) -3.625E+00 s

4) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.070E-04 s
b) 4.477E-04 s
c) 4.925E-04 s
d) 5.417E-04 s
e) 5.959E-04 s

#### c14 C1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
a) -3.137E-01 s
b) -3.451E-01 s
c) -3.796E-01 s
d) -4.176E-01 s
e) -4.593E-01 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
a) 7.635E-01 V
b) 9.162E-01 V
c) 1.099E+00 V
d) 1.319E+00 V
e) 1.583E+00 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.846E-04 s
b) 5.330E-04 s
c) 5.863E-04 s
d) 6.449E-04 s
e) 7.094E-04 s
4) A long solenoid has a length 0.794 meters, radius 4.45 cm, and 568 turns. It surrounds coil of radius 6.81 meters and 9turns. If the current in the solenoid is changing at a rate of 246 A/s, what is the emf induced in the surounding coil?
a) 3.890E-02 V
b) 4.279E-02 V
c) 4.707E-02 V
d) 5.177E-02 V
e) 5.695E-02 V

#### c14 C2

1) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
a) 6.604E-02 V
b) 7.264E-02 V
c) 7.990E-02 V
d) 8.789E-02 V
e) 9.668E-02 V

2) In an LC circuit, the self-inductance is 0.0735 H and the capacitance is 2.300E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.220E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.411E-04 s
b) 4.852E-04 s
c) 5.338E-04 s
d) 5.871E-04 s
e) 6.458E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
a) -1.047E+00 s
b) -1.152E+00 s
c) -1.267E+00 s
d) -1.393E+00 s
e) -1.533E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V

### c14 D0

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.230E-04 s
b) 6.853E-04 s
c) 7.538E-04 s
d) 8.292E-04 s
e) 9.121E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
a) 9.618E-01 V
b) 1.154E+00 V
c) 1.385E+00 V
d) 1.662E+00 V
e) 1.994E+00 V
4) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
a) 2.229E-02 V
b) 2.451E-02 V
c) 2.697E-02 V
d) 2.966E-02 V
e) 3.263E-02 V

#### c14 D1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
a) 3.463E+00 V
b) 4.156E+00 V
c) 4.987E+00 V
d) 5.984E+00 V
e) 7.181E+00 V
2) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
a) 3.446E-02 V
b) 3.790E-02 V
c) 4.169E-02 V
d) 4.586E-02 V
e) 5.045E-02 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s

4) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

a) 4.535E-01 H
b) 4.988E-01 H
c) 5.487E-01 H
d) 6.035E-01 H
e) 6.639E-01 H

#### c14 D2

1) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
a) 4.476E-02 V
b) 4.924E-02 V
c) 5.416E-02 V
d) 5.958E-02 V
e) 6.553E-02 V

2) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s

3) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

a) 2.428E+00 H
b) 2.671E+00 H
c) 2.938E+00 H
d) 3.232E+00 H
e) 3.555E+00 H
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
a) 1.214E+00 V
b) 1.457E+00 V
c) 1.749E+00 V
d) 2.099E+00 V
e) 2.518E+00 V

### c14 E0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V
2) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
a) 1.986E-02 V
b) 2.185E-02 V
c) 2.404E-02 V
d) 2.644E-02 V
e) 2.908E-02 V

3) In an LC circuit, the self-inductance is 0.0776 H and the capacitance is 6.940E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.400E-05 C. How long does it take for the capacitor to become completely discharged?

a) 1.048E-03 s
b) 1.153E-03 s
c) 1.268E-03 s
d) 1.395E-03 s
e) 1.534E-03 s

4) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H

#### c14 E1

1) A long solenoid has a length 0.777 meters, radius 3.45 cm, and 557 turns. It surrounds coil of radius 6.01 meters and 10turns. If the current in the solenoid is changing at a rate of 184 A/s, what is the emf induced in the surounding coil?
a) 1.463E-02 V
b) 1.609E-02 V
c) 1.770E-02 V
d) 1.947E-02 V
e) 2.142E-02 V

2) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.856E-04 s
b) 4.242E-04 s
c) 4.666E-04 s
d) 5.133E-04 s
e) 5.646E-04 s

3) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

a) 2.914E-01 H
b) 3.205E-01 H
c) 3.526E-01 H
d) 3.878E-01 H
e) 4.266E-01 H
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
a) 7.635E-01 V
b) 9.162E-01 V
c) 1.099E+00 V
d) 1.319E+00 V
e) 1.583E+00 V

#### c14 E2

1) An induced emf of 1.92V is measured across a coil of 74 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.38A in 0.69s. What is the self-inductance of the coil?

a) 1.560E-01 H
b) 1.716E-01 H
c) 1.888E-01 H
d) 2.076E-01 H
e) 2.284E-01 H
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V

3) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
a) 7.037E-01 V
b) 8.444E-01 V
c) 1.013E+00 V
d) 1.216E+00 V
e) 1.459E+00 V

### c14 F0

1) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.443E-04 s
b) 5.988E-04 s
c) 6.586E-04 s
d) 7.245E-04 s
e) 7.969E-04 s

2) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

a) 2.428E+00 H
b) 2.671E+00 H
c) 2.938E+00 H
d) 3.232E+00 H
e) 3.555E+00 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
a) -9.593E-01 s
b) -1.055E+00 s
c) -1.161E+00 s
d) -1.277E+00 s
e) -1.405E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
a) 6.033E-01 V
b) 7.240E-01 V
c) 8.688E-01 V
d) 1.043E+00 V
e) 1.251E+00 V

#### c14 F1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
a) 9.618E-01 V
b) 1.154E+00 V
c) 1.385E+00 V
d) 1.662E+00 V
e) 1.994E+00 V

2) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
a) -2.296E+00 s
b) -2.525E+00 s
c) -2.778E+00 s
d) -3.056E+00 s
e) -3.361E+00 s

4) An induced emf of 1.7V is measured across a coil of 81 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.07A in 0.174s. What is the self-inductance of the coil?

a) 3.458E-02 H
b) 3.804E-02 H
c) 4.184E-02 H
d) 4.602E-02 H
e) 5.062E-02 H

#### c14 F2

1) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

a) 2.914E-01 H
b) 3.205E-01 H
c) 3.526E-01 H
d) 3.878E-01 H
e) 4.266E-01 H

2) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 2.204E-04 s
b) 2.425E-04 s
c) 2.667E-04 s
d) 2.934E-04 s
e) 3.227E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
a) -2.296E+00 s
b) -2.525E+00 s
c) -2.778E+00 s
d) -3.056E+00 s
e) -3.361E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =2.47 s if ε = 7.04 V , R = 7.69 Ω, and L = 5.78 H?
a) 4.249E-01 V
b) 5.099E-01 V
c) 6.118E-01 V
d) 7.342E-01 V
e) 8.810E-01 V

### c14 G0

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V

3) A washer has an inner diameter of 2.46 cm and an outer diamter of 4.24 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.32mm}$, and ${\displaystyle n=2.63}$. What is the volume of the washer?

a) 7.499E-01 cm3
b) 8.249E-01 cm3
c) 9.074E-01 cm3
d) 9.982E-01 cm3
e) 1.098E+00 cm3

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s

#### c14 G1

1) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
a) 2.229E-02 V
b) 2.451E-02 V
c) 2.697E-02 V
d) 2.966E-02 V
e) 3.263E-02 V

2) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

a) 1.089E+00 cm3
b) 1.198E+00 cm3
c) 1.318E+00 cm3
d) 1.449E+00 cm3
e) 1.594E+00 cm3

3) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s

4) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

a) 5.477E-01 H
b) 6.024E-01 H
c) 6.627E-01 H
d) 7.290E-01 H
e) 8.019E-01 H

#### c14 G2

1) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V

2) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

a) 1.228E+00 cm3
b) 1.351E+00 cm3
c) 1.486E+00 cm3
d) 1.634E+00 cm3
e) 1.798E+00 cm3

3) An induced emf of 6.78V is measured across a coil of 58 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.98A in 0.726s. What is the self-inductance of the coil?

a) 1.022E+00 H
b) 1.124E+00 H
c) 1.237E+00 H
d) 1.360E+00 H
e) 1.496E+00 H

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s

### c14 H0

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
a) 5.369E-01 V
b) 6.443E-01 V
c) 7.732E-01 V
d) 9.278E-01 V
e) 1.113E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
a) -4.939E+00 s
b) -5.433E+00 s
c) -5.976E+00 s
d) -6.574E+00 s
e) -7.231E+00 s

4) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

a) 1.118E+00 cm3
b) 1.229E+00 cm3
c) 1.352E+00 cm3
d) 1.487E+00 cm3
e) 1.636E+00 cm3

#### c14 H1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V

3) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

a) 1.071E+00 cm3
b) 1.178E+00 cm3
c) 1.296E+00 cm3
d) 1.425E+00 cm3
e) 1.568E+00 cm3

4) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.443E-04 s
b) 5.988E-04 s
c) 6.586E-04 s
d) 7.245E-04 s
e) 7.969E-04 s

#### c14 H2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
a) 1.214E+00 V
b) 1.457E+00 V
c) 1.749E+00 V
d) 2.099E+00 V
e) 2.518E+00 V

3) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

a) 8.141E-01 cm3
b) 8.955E-01 cm3
c) 9.850E-01 cm3
d) 1.084E+00 cm3
e) 1.192E+00 cm3

4) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.856E-04 s
b) 4.242E-04 s
c) 4.666E-04 s
d) 5.133E-04 s
e) 5.646E-04 s

### c14 I0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s

2) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 9.370E-04 s
b) 1.031E-03 s
c) 1.134E-03 s
d) 1.247E-03 s
e) 1.372E-03 s
3) A long solenoid has a length 0.896 meters, radius 4.28 cm, and 550 turns. It surrounds coil of radius 6.65 meters and 9turns. If the current in the solenoid is changing at a rate of 204 A/s, what is the emf induced in the surounding coil?
a) 2.328E-02 V
b) 2.560E-02 V
c) 2.817E-02 V
d) 3.098E-02 V
e) 3.408E-02 V

4) An induced emf of 1.86V is measured across a coil of 59 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.58A in 0.89s. What is the self-inductance of the coil?

a) 4.821E-01 H
b) 5.303E-01 H
c) 5.833E-01 H
d) 6.416E-01 H
e) 7.058E-01 H

#### c14 I1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s

2) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

a) 4.535E-01 H
b) 4.988E-01 H
c) 5.487E-01 H
d) 6.035E-01 H
e) 6.639E-01 H

3) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.230E-04 s
b) 6.853E-04 s
c) 7.538E-04 s
d) 8.292E-04 s
e) 9.121E-04 s
4) A long solenoid has a length 0.974 meters, radius 4.72 cm, and 587 turns. It surrounds coil of radius 8.65 meters and 17turns. If the current in the solenoid is changing at a rate of 146 A/s, what is the emf induced in the surounding coil?
a) 2.823E-02 V
b) 3.105E-02 V
c) 3.416E-02 V
d) 3.757E-02 V
e) 4.133E-02 V

#### c14 I2

1) In an LC circuit, the self-inductance is 0.0735 H and the capacitance is 2.300E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.220E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.411E-04 s
b) 4.852E-04 s
c) 5.338E-04 s
d) 5.871E-04 s
e) 6.458E-04 s

2) An induced emf of 6.75V is measured across a coil of 79 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.76A in 0.115s. What is the self-inductance of the coil?

a) 9.094E-02 H
b) 1.000E-01 H
c) 1.100E-01 H
d) 1.210E-01 H
e) 1.331E-01 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s
4) A long solenoid has a length 0.841 meters, radius 3.81 cm, and 516 turns. It surrounds coil of radius 9.2 meters and 11turns. If the current in the solenoid is changing at a rate of 190 A/s, what is the emf induced in the surounding coil?
a) 1.735E-02 V
b) 1.908E-02 V
c) 2.099E-02 V
d) 2.309E-02 V
e) 2.540E-02 V

### c14 J0

1) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

a) 1.089E+00 cm3
b) 1.198E+00 cm3
c) 1.318E+00 cm3
d) 1.449E+00 cm3
e) 1.594E+00 cm3
2) A long solenoid has a length 0.89 meters, radius 3.01 cm, and 505 turns. It surrounds coil of radius 8.65 meters and 18turns. If the current in the solenoid is changing at a rate of 279 A/s, what is the emf induced in the surounding coil?
a) 2.646E-02 V
b) 2.911E-02 V
c) 3.202E-02 V
d) 3.522E-02 V
e) 3.874E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.56 s if ε = 6.14 V , R = 7.96 Ω, and L = 6.65 H?
a) 5.281E-01 V
b) 6.337E-01 V
c) 7.605E-01 V
d) 9.126E-01 V
e) 1.095E+00 V

4) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.251E-04 s
b) 5.776E-04 s
c) 6.354E-04 s
d) 6.989E-04 s
e) 7.688E-04 s

#### c14 J1

1) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.251E-04 s
b) 5.776E-04 s
c) 6.354E-04 s
d) 6.989E-04 s
e) 7.688E-04 s
2) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
a) 4.476E-02 V
b) 4.924E-02 V
c) 5.416E-02 V
d) 5.958E-02 V
e) 6.553E-02 V

3) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
a) 3.682E-01 V
b) 4.418E-01 V
c) 5.301E-01 V
d) 6.362E-01 V
e) 7.634E-01 V

#### c14 J2

1) A long solenoid has a length 0.559 meters, radius 4.6 cm, and 515 turns. It surrounds coil of radius 9.72 meters and 17turns. If the current in the solenoid is changing at a rate of 189 A/s, what is the emf induced in the surounding coil?
a) 7.062E-02 V
b) 7.768E-02 V
c) 8.545E-02 V
d) 9.400E-02 V
e) 1.034E-01 V
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
a) 4.518E-01 V
b) 5.422E-01 V
c) 6.506E-01 V
d) 7.807E-01 V
e) 9.369E-01 V

3) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

a) 1.071E+00 cm3
b) 1.178E+00 cm3
c) 1.296E+00 cm3
d) 1.425E+00 cm3
e) 1.568E+00 cm3

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s

### c14 K0

1) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.85 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.7mm}$, and ${\displaystyle n=2.76}$. What is the volume of the washer?

a) 1.038E+00 cm3
b) 1.142E+00 cm3
c) 1.256E+00 cm3
d) 1.381E+00 cm3
e) 1.520E+00 cm3

2) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 2.204E-04 s
b) 2.425E-04 s
c) 2.667E-04 s
d) 2.934E-04 s
e) 3.227E-04 s

3) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

a) 4.535E-01 H
b) 4.988E-01 H
c) 5.487E-01 H
d) 6.035E-01 H
e) 6.639E-01 H
4) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V

#### c14 K1

1) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.950E-04 s
b) 5.445E-04 s
c) 5.989E-04 s
d) 6.588E-04 s
e) 7.247E-04 s

2) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3
3) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
a) 3.446E-02 V
b) 3.790E-02 V
c) 4.169E-02 V
d) 4.586E-02 V
e) 5.045E-02 V

4) An induced emf of 3.78V is measured across a coil of 99 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.36A in 0.821s. What is the self-inductance of the coil?

a) 4.033E-01 H
b) 4.436E-01 H
c) 4.880E-01 H
d) 5.367E-01 H
e) 5.904E-01 H

#### c14 K2

1) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

a) 1.228E+00 cm3
b) 1.351E+00 cm3
c) 1.486E+00 cm3
d) 1.634E+00 cm3
e) 1.798E+00 cm3

2) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

a) 2.914E-01 H
b) 3.205E-01 H
c) 3.526E-01 H
d) 3.878E-01 H
e) 4.266E-01 H
3) A long solenoid has a length 0.703 meters, radius 4.03 cm, and 542 turns. It surrounds coil of radius 6.58 meters and 9turns. If the current in the solenoid is changing at a rate of 208 A/s, what is the emf induced in the surounding coil?
a) 2.643E-02 V
b) 2.907E-02 V
c) 3.198E-02 V
d) 3.518E-02 V
e) 3.869E-02 V

4) In an LC circuit, the self-inductance is 0.0237 H and the capacitance is 6.140E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.260E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.093E-04 s
b) 4.502E-04 s
c) 4.952E-04 s
d) 5.447E-04 s
e) 5.992E-04 s

### c14 L0

1) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 8.932E-01 cm3
b) 9.825E-01 cm3
c) 1.081E+00 cm3
d) 1.189E+00 cm3
e) 1.308E+00 cm3
2) A long solenoid has a length 0.923 meters, radius 4.08 cm, and 579 turns. It surrounds coil of radius 6.86 meters and 14turns. If the current in the solenoid is changing at a rate of 139 A/s, what is the emf induced in the surounding coil?
a) 1.894E-02 V
b) 2.083E-02 V
c) 2.291E-02 V
d) 2.520E-02 V
e) 2.772E-02 V

3) An induced emf of 1.92V is measured across a coil of 74 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.38A in 0.69s. What is the self-inductance of the coil?

a) 1.560E-01 H
b) 1.716E-01 H
c) 1.888E-01 H
d) 2.076E-01 H
e) 2.284E-01 H

4) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

a) 5.443E-04 s
b) 5.988E-04 s
c) 6.586E-04 s
d) 7.245E-04 s
e) 7.969E-04 s

#### c14 L1

1) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

a) 5.047E-01 H
b) 5.552E-01 H
c) 6.107E-01 H
d) 6.717E-01 H
e) 7.389E-01 H

2) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.856E-04 s
b) 4.242E-04 s
c) 4.666E-04 s
d) 5.133E-04 s
e) 5.646E-04 s
3) A long solenoid has a length 0.759 meters, radius 4.51 cm, and 542 turns. It surrounds coil of radius 9.59 meters and 13turns. If the current in the solenoid is changing at a rate of 272 A/s, what is the emf induced in the surounding coil?
a) 5.791E-02 V
b) 6.370E-02 V
c) 7.007E-02 V
d) 7.708E-02 V
e) 8.478E-02 V

4) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

a) 1.351E+00 cm3
b) 1.486E+00 cm3
c) 1.635E+00 cm3
d) 1.798E+00 cm3
e) 1.978E+00 cm3

#### c14 L2

1) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

a) 1.351E+00 cm3
b) 1.486E+00 cm3
c) 1.635E+00 cm3
d) 1.798E+00 cm3
e) 1.978E+00 cm3

2) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

a) 5.047E-01 H
b) 5.552E-01 H
c) 6.107E-01 H
d) 6.717E-01 H
e) 7.389E-01 H
3) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
a) 2.229E-02 V
b) 2.451E-02 V
c) 2.697E-02 V
d) 2.966E-02 V
e) 3.263E-02 V

4) In an LC circuit, the self-inductance is 0.0464 H and the capacitance is 7.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.280E-05 C. How long does it take for the capacitor to become completely discharged?

a) 8.339E-04 s
b) 9.173E-04 s
c) 1.009E-03 s
d) 1.110E-03 s
e) 1.221E-03 s

### c14 M0

1) An induced emf of 4.13V is measured across a coil of 70 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.63A in 0.133s. What is the self-inductance of the coil?

a) 1.726E-01 H
b) 1.899E-01 H
c) 2.089E-01 H
d) 2.297E-01 H
e) 2.527E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
a) -4.939E+00 s
b) -5.433E+00 s
c) -5.976E+00 s
d) -6.574E+00 s
e) -7.231E+00 s

4) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.846E-04 s
b) 5.330E-04 s
c) 5.863E-04 s
d) 6.449E-04 s
e) 7.094E-04 s

#### c14 M1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
a) -3.137E-01 s
b) -3.451E-01 s
c) -3.796E-01 s
d) -4.176E-01 s
e) -4.593E-01 s

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.230E-04 s
b) 6.853E-04 s
c) 7.538E-04 s
d) 8.292E-04 s
e) 9.121E-04 s

3) An induced emf of 6.78V is measured across a coil of 58 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.98A in 0.726s. What is the self-inductance of the coil?

a) 1.022E+00 H
b) 1.124E+00 H
c) 1.237E+00 H
d) 1.360E+00 H
e) 1.496E+00 H
4) A long solenoid has a length 0.777 meters, radius 3.45 cm, and 557 turns. It surrounds coil of radius 6.01 meters and 10turns. If the current in the solenoid is changing at a rate of 184 A/s, what is the emf induced in the surounding coil?
a) 1.463E-02 V
b) 1.609E-02 V
c) 1.770E-02 V
d) 1.947E-02 V
e) 2.142E-02 V

#### c14 M2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s

2) An induced emf of 4.7V is measured across a coil of 52 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.08A in 0.961s. What is the self-inductance of the coil?

a) 1.102E+00 H
b) 1.212E+00 H
c) 1.333E+00 H
d) 1.466E+00 H
e) 1.613E+00 H

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.846E-04 s
b) 5.330E-04 s
c) 5.863E-04 s
d) 6.449E-04 s
e) 7.094E-04 s
4) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V

### c14 N0

1) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

a) 2.428E+00 H
b) 2.671E+00 H
c) 2.938E+00 H
d) 3.232E+00 H
e) 3.555E+00 H
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V

3) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.230E-04 s
b) 6.853E-04 s
c) 7.538E-04 s
d) 8.292E-04 s
e) 9.121E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
a) 5.736E-01 V
b) 6.884E-01 V
c) 8.260E-01 V
d) 9.912E-01 V
e) 1.189E+00 V

#### c14 N1

1) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

a) 5.047E-01 H
b) 5.552E-01 H
c) 6.107E-01 H
d) 6.717E-01 H
e) 7.389E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
a) 1.214E+00 V
b) 1.457E+00 V
c) 1.749E+00 V
d) 2.099E+00 V
e) 2.518E+00 V

4) In an LC circuit, the self-inductance is 0.0464 H and the capacitance is 7.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.280E-05 C. How long does it take for the capacitor to become completely discharged?

a) 8.339E-04 s
b) 9.173E-04 s
c) 1.009E-03 s
d) 1.110E-03 s
e) 1.221E-03 s

#### c14 N2

1) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 9.370E-04 s
b) 1.031E-03 s
c) 1.134E-03 s
d) 1.247E-03 s
e) 1.372E-03 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
a) 6.033E-01 V
b) 7.240E-01 V
c) 8.688E-01 V
d) 1.043E+00 V
e) 1.251E+00 V

3) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

a) 2.914E-01 H
b) 3.205E-01 H
c) 3.526E-01 H
d) 3.878E-01 H
e) 4.266E-01 H
4) A long solenoid has a length 0.974 meters, radius 4.72 cm, and 587 turns. It surrounds coil of radius 8.65 meters and 17turns. If the current in the solenoid is changing at a rate of 146 A/s, what is the emf induced in the surounding coil?
a) 2.823E-02 V
b) 3.105E-02 V
c) 3.416E-02 V
d) 3.757E-02 V
e) 4.133E-02 V

### c14 O0

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.87 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.39mm}$, and ${\displaystyle n=2.55}$. What is the volume of the washer?

a) 7.754E-01 cm3
b) 8.530E-01 cm3
c) 9.383E-01 cm3
d) 1.032E+00 cm3
e) 1.135E+00 cm3
2) A long solenoid has a length 0.896 meters, radius 4.28 cm, and 550 turns. It surrounds coil of radius 6.65 meters and 9turns. If the current in the solenoid is changing at a rate of 204 A/s, what is the emf induced in the surounding coil?
a) 2.328E-02 V
b) 2.560E-02 V
c) 2.817E-02 V
d) 3.098E-02 V
e) 3.408E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s

#### c14 O1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
a) -2.296E+00 s
b) -2.525E+00 s
c) -2.778E+00 s
d) -3.056E+00 s
e) -3.361E+00 s
2) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
a) 3.446E-02 V
b) 3.790E-02 V
c) 4.169E-02 V
d) 4.586E-02 V
e) 5.045E-02 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s

4) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

a) 1.351E+00 cm3
b) 1.486E+00 cm3
c) 1.635E+00 cm3
d) 1.798E+00 cm3
e) 1.978E+00 cm3

#### c14 O2

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.54% of its maximum value if ε = 2.46 V , R = 2.8 Ω, and L = 5.67 H?
a) -2.540E+00 s
b) -2.794E+00 s
c) -3.073E+00 s
d) -3.381E+00 s
e) -3.719E+00 s
3) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V

4) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.62 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.66mm}$, and ${\displaystyle n=2.61}$. What is the volume of the washer?

a) 6.960E-01 cm3
b) 7.656E-01 cm3
c) 8.421E-01 cm3
d) 9.264E-01 cm3
e) 1.019E+00 cm3

### c14 P0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
a) -9.593E-01 s
b) -1.055E+00 s
c) -1.161E+00 s
d) -1.277E+00 s
e) -1.405E+00 s

2) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

a) 8.141E-01 cm3
b) 8.955E-01 cm3
c) 9.850E-01 cm3
d) 1.084E+00 cm3
e) 1.192E+00 cm3
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V

4) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 2.204E-04 s
b) 2.425E-04 s
c) 2.667E-04 s
d) 2.934E-04 s
e) 3.227E-04 s

#### c14 P1

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.87 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.39mm}$, and ${\displaystyle n=2.55}$. What is the volume of the washer?

a) 7.754E-01 cm3
b) 8.530E-01 cm3
c) 9.383E-01 cm3
d) 1.032E+00 cm3
e) 1.135E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
a) 7.037E-01 V
b) 8.444E-01 V
c) 1.013E+00 V
d) 1.216E+00 V
e) 1.459E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.65% of its maximum value if ε = 3.62 V , R = 4.07 Ω, and L = 7.19 H?
a) -2.476E+00 s
b) -2.724E+00 s
c) -2.996E+00 s
d) -3.296E+00 s
e) -3.625E+00 s

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s

#### c14 P2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
a) 9.618E-01 V
b) 1.154E+00 V
c) 1.385E+00 V
d) 1.662E+00 V
e) 1.994E+00 V

2) A washer has an inner diameter of 2.62 cm and an outer diamter of 4.79 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.08mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

a) 1.056E+00 cm3
b) 1.161E+00 cm3
c) 1.278E+00 cm3
d) 1.405E+00 cm3
e) 1.546E+00 cm3

3) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 9.370E-04 s
b) 1.031E-03 s
c) 1.134E-03 s
d) 1.247E-03 s
e) 1.372E-03 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
a) -3.137E-01 s
b) -3.451E-01 s
c) -3.796E-01 s
d) -4.176E-01 s
e) -4.593E-01 s

### c14 Q0

1) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

a) 7.821E-04 s
b) 8.603E-04 s
c) 9.463E-04 s
d) 1.041E-03 s
e) 1.145E-03 s

2) An induced emf of 8.76V is measured across a coil of 62 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.59A in 0.611s. What is the self-inductance of the coil?

a) 7.913E-01 H
b) 8.704E-01 H
c) 9.575E-01 H
d) 1.053E+00 H
e) 1.159E+00 H
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
a) 7.635E-01 V
b) 9.162E-01 V
c) 1.099E+00 V
d) 1.319E+00 V
e) 1.583E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.43% of its maximum value if ε = 1.64 V , R = 8.3 Ω, and L = 1.61 H?
a) -4.120E-01 s
b) -4.532E-01 s
c) -4.985E-01 s
d) -5.483E-01 s
e) -6.031E-01 s

#### c14 Q1

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.230E-04 s
b) 6.853E-04 s
c) 7.538E-04 s
d) 8.292E-04 s
e) 9.121E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
a) 9.618E-01 V
b) 1.154E+00 V
c) 1.385E+00 V
d) 1.662E+00 V
e) 1.994E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.01% of its maximum value if ε = 1.45 V , R = 4.4 Ω, and L = 2.36 H?
a) -8.659E-01 s
b) -9.525E-01 s
c) -1.048E+00 s
d) -1.153E+00 s
e) -1.268E+00 s

#### c14 Q2

1) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.846E-04 s
b) 5.330E-04 s
c) 5.863E-04 s
d) 6.449E-04 s
e) 7.094E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
a) 7.635E-01 V
b) 9.162E-01 V
c) 1.099E+00 V
d) 1.319E+00 V
e) 1.583E+00 V

4) An induced emf of 6.75V is measured across a coil of 79 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.76A in 0.115s. What is the self-inductance of the coil?

a) 9.094E-02 H
b) 1.000E-01 H
c) 1.100E-01 H
d) 1.210E-01 H
e) 1.331E-01 H

### c14 R0

1) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.950E-04 s
b) 5.445E-04 s
c) 5.989E-04 s
d) 6.588E-04 s
e) 7.247E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =13.6 s if ε = 6.56 V , R = 2.44 Ω, and L = 8.76 H?
a) 2.627E+00 V
b) 3.153E+00 V
c) 3.783E+00 V
d) 4.540E+00 V
e) 5.448E+00 V

3) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3

4) An induced emf of 5.08V is measured across a coil of 78 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.07A in 0.681s. What is the self-inductance of the coil?

a) 4.660E-01 H
b) 5.127E-01 H
c) 5.639E-01 H
d) 6.203E-01 H
e) 6.823E-01 H

#### c14 R1

1) An induced emf of 8.76V is measured across a coil of 62 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.59A in 0.611s. What is the self-inductance of the coil?

a) 7.913E-01 H
b) 8.704E-01 H
c) 9.575E-01 H
d) 1.053E+00 H
e) 1.159E+00 H
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
a) 6.033E-01 V
b) 7.240E-01 V
c) 8.688E-01 V
d) 1.043E+00 V
e) 1.251E+00 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.846E-04 s
b) 5.330E-04 s
c) 5.863E-04 s
d) 6.449E-04 s
e) 7.094E-04 s

4) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3

#### c14 R2

1) An induced emf of 5.08V is measured across a coil of 78 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.07A in 0.681s. What is the self-inductance of the coil?

a) 4.660E-01 H
b) 5.127E-01 H
c) 5.639E-01 H
d) 6.203E-01 H
e) 6.823E-01 H

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.489E-04 s
b) 4.938E-04 s
c) 5.432E-04 s
d) 5.975E-04 s
e) 6.572E-04 s

3) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 1.342E+00 cm3
b) 1.477E+00 cm3
c) 1.624E+00 cm3
d) 1.787E+00 cm3
e) 1.965E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
a) 4.518E-01 V
b) 5.422E-01 V
c) 6.506E-01 V
d) 7.807E-01 V
e) 9.369E-01 V

### c14 S0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s
2) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
a) 4.476E-02 V
b) 4.924E-02 V
c) 5.416E-02 V
d) 5.958E-02 V
e) 6.553E-02 V

3) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 1.342E+00 cm3
b) 1.477E+00 cm3
c) 1.624E+00 cm3
d) 1.787E+00 cm3
e) 1.965E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
a) 4.518E-01 V
b) 5.422E-01 V
c) 6.506E-01 V
d) 7.807E-01 V
e) 9.369E-01 V

#### c14 S1

1) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

a) 8.141E-01 cm3
b) 8.955E-01 cm3
c) 9.850E-01 cm3
d) 1.084E+00 cm3
e) 1.192E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =13.6 s if ε = 6.56 V , R = 2.44 Ω, and L = 8.76 H?
a) 2.627E+00 V
b) 3.153E+00 V
c) 3.783E+00 V
d) 4.540E+00 V
e) 5.448E+00 V
3) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
a) 4.476E-02 V
b) 4.924E-02 V
c) 5.416E-02 V
d) 5.958E-02 V
e) 6.553E-02 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s

#### c14 S2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.0 s if ε = 4.14 V , R = 7.92 Ω, and L = 2.26 H?
a) 3.523E-01 V
b) 4.227E-01 V
c) 5.073E-01 V
d) 6.087E-01 V
e) 7.304E-01 V
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
a) 2.917E-02 V
b) 3.208E-02 V
c) 3.529E-02 V
d) 3.882E-02 V
e) 4.270E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
a) -4.939E+00 s
b) -5.433E+00 s
c) -5.976E+00 s
d) -6.574E+00 s
e) -7.231E+00 s

4) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

a) 1.089E+00 cm3
b) 1.198E+00 cm3
c) 1.318E+00 cm3
d) 1.449E+00 cm3
e) 1.594E+00 cm3

### c14 T0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
a) 9.902E-01 V
b) 1.188E+00 V
c) 1.426E+00 V
d) 1.711E+00 V
e) 2.053E+00 V

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.489E-04 s
b) 4.938E-04 s
c) 5.432E-04 s
d) 5.975E-04 s
e) 6.572E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.7% of its maximum value if ε = 7.67 V , R = 2.45 Ω, and L = 7.81 H?
a) -5.757E+00 s
b) -6.333E+00 s
c) -6.966E+00 s
d) -7.663E+00 s
e) -8.429E+00 s

4) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 8.932E-01 cm3
b) 9.825E-01 cm3
c) 1.081E+00 cm3
d) 1.189E+00 cm3
e) 1.308E+00 cm3

#### c14 T1

1) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

a) 1.570E+00 cm3
b) 1.727E+00 cm3
c) 1.900E+00 cm3
d) 2.090E+00 cm3
e) 2.299E+00 cm3

2) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.070E-04 s
b) 4.477E-04 s
c) 4.925E-04 s
d) 5.417E-04 s
e) 5.959E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
a) -1.047E+00 s
b) -1.152E+00 s
c) -1.267E+00 s
d) -1.393E+00 s
e) -1.533E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
a) 3.682E-01 V
b) 4.418E-01 V
c) 5.301E-01 V
d) 6.362E-01 V
e) 7.634E-01 V

#### c14 T2

1) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

a) 1.097E+00 cm3
b) 1.207E+00 cm3
c) 1.328E+00 cm3
d) 1.460E+00 cm3
e) 1.606E+00 cm3
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.16% of its maximum value if ε = 4.79 V , R = 4.37 Ω, and L = 5.29 H?
a) -2.110E+00 s
b) -2.321E+00 s
c) -2.553E+00 s
d) -2.809E+00 s
e) -3.090E+00 s

3) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

a) 7.821E-04 s
b) 8.603E-04 s
c) 9.463E-04 s
d) 1.041E-03 s
e) 1.145E-03 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
a) 3.463E+00 V
b) 4.156E+00 V
c) 4.987E+00 V
d) 5.984E+00 V
e) 7.181E+00 V

### c14 U0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
a) 6.033E-01 V
b) 7.240E-01 V
c) 8.688E-01 V
d) 1.043E+00 V
e) 1.251E+00 V

2) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s

4) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

a) 8.141E-01 cm3
b) 8.955E-01 cm3
c) 9.850E-01 cm3
d) 1.084E+00 cm3
e) 1.192E+00 cm3

#### c14 U1

1) A washer has an inner diameter of 2.62 cm and an outer diamter of 4.79 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.08mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

a) 1.056E+00 cm3
b) 1.161E+00 cm3
c) 1.278E+00 cm3
d) 1.405E+00 cm3
e) 1.546E+00 cm3

2) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.43% of its maximum value if ε = 1.64 V , R = 8.3 Ω, and L = 1.61 H?
a) -4.120E-01 s
b) -4.532E-01 s
c) -4.985E-01 s
d) -5.483E-01 s
e) -6.031E-01 s

#### c14 U2

1) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.16% of its maximum value if ε = 4.79 V , R = 4.37 Ω, and L = 5.29 H?
a) -2.110E+00 s
b) -2.321E+00 s
c) -2.553E+00 s
d) -2.809E+00 s
e) -3.090E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
a) 3.463E+00 V
b) 4.156E+00 V
c) 4.987E+00 V
d) 5.984E+00 V
e) 7.181E+00 V

4) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

a) 1.097E+00 cm3
b) 1.207E+00 cm3
c) 1.328E+00 cm3
d) 1.460E+00 cm3
e) 1.606E+00 cm3

### c14 V0

1) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

a) 1.228E+00 cm3
b) 1.351E+00 cm3
c) 1.486E+00 cm3
d) 1.634E+00 cm3
e) 1.798E+00 cm3

2) An induced emf of 2.9V is measured across a coil of 51 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.89A in 0.806s. What is the self-inductance of the coil?

a) 2.549E-01 H
b) 2.804E-01 H
c) 3.084E-01 H
d) 3.392E-01 H
e) 3.732E-01 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.44% of its maximum value if ε = 5.95 V , R = 7.26 Ω, and L = 1.29 H?
a) -3.114E-01 s
b) -3.425E-01 s
c) -3.767E-01 s
d) -4.144E-01 s
e) -4.559E-01 s
4) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V

#### c14 V1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s
2) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
a) 2.229E-02 V
b) 2.451E-02 V
c) 2.697E-02 V
d) 2.966E-02 V
e) 3.263E-02 V

3) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

a) 5.477E-01 H
b) 6.024E-01 H
c) 6.627E-01 H
d) 7.290E-01 H
e) 8.019E-01 H

4) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

a) 8.141E-01 cm3
b) 8.955E-01 cm3
c) 9.850E-01 cm3
d) 1.084E+00 cm3
e) 1.192E+00 cm3

#### c14 V2

1) An induced emf of 4.7V is measured across a coil of 52 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.08A in 0.961s. What is the self-inductance of the coil?

a) 1.102E+00 H
b) 1.212E+00 H
c) 1.333E+00 H
d) 1.466E+00 H
e) 1.613E+00 H

2) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

a) 1.342E+00 cm3
b) 1.477E+00 cm3
c) 1.624E+00 cm3
d) 1.787E+00 cm3
e) 1.965E+00 cm3
3) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
a) 4.116E-02 V
b) 4.528E-02 V
c) 4.981E-02 V
d) 5.479E-02 V
e) 6.027E-02 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
a) -8.773E-01 s
b) -9.651E-01 s
c) -1.062E+00 s
d) -1.168E+00 s
e) -1.284E+00 s

### c14 W0

1) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.489E-04 s
b) 4.938E-04 s
c) 5.432E-04 s
d) 5.975E-04 s
e) 6.572E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.01 s if ε = 5.75 V , R = 5.73 Ω, and L = 7.46 H?
a) 9.936E-01 V
b) 1.192E+00 V
c) 1.431E+00 V
d) 1.717E+00 V
e) 2.060E+00 V
4) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
a) 1.986E-02 V
b) 2.185E-02 V
c) 2.404E-02 V
d) 2.644E-02 V
e) 2.908E-02 V

#### c14 W1

1) A long solenoid has a length 0.559 meters, radius 4.6 cm, and 515 turns. It surrounds coil of radius 9.72 meters and 17turns. If the current in the solenoid is changing at a rate of 189 A/s, what is the emf induced in the surounding coil?
a) 7.062E-02 V
b) 7.768E-02 V
c) 8.545E-02 V
d) 9.400E-02 V
e) 1.034E-01 V
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
a) 9.902E-01 V
b) 1.188E+00 V
c) 1.426E+00 V
d) 1.711E+00 V
e) 2.053E+00 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s

#### c14 W2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
a) 3.682E-01 V
b) 4.418E-01 V
c) 5.301E-01 V
d) 6.362E-01 V
e) 7.634E-01 V

3) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.070E-04 s
b) 4.477E-04 s
c) 4.925E-04 s
d) 5.417E-04 s
e) 5.959E-04 s
4) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
a) 1.986E-02 V
b) 2.185E-02 V
c) 2.404E-02 V
d) 2.644E-02 V
e) 2.908E-02 V

### c14 X0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
a) 6.567E-01 V
b) 7.880E-01 V
c) 9.456E-01 V
d) 1.135E+00 V
e) 1.362E+00 V

2) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

a) 9.370E-04 s
b) 1.031E-03 s
c) 1.134E-03 s
d) 1.247E-03 s
e) 1.372E-03 s

3) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.85 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.7mm}$, and ${\displaystyle n=2.76}$. What is the volume of the washer?

a) 1.038E+00 cm3
b) 1.142E+00 cm3
c) 1.256E+00 cm3
d) 1.381E+00 cm3
e) 1.520E+00 cm3

4) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

a) 5.477E-01 H
b) 6.024E-01 H
c) 6.627E-01 H
d) 7.290E-01 H
e) 8.019E-01 H

#### c14 X1

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.62 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.66mm}$, and ${\displaystyle n=2.61}$. What is the volume of the washer?

a) 6.960E-01 cm3
b) 7.656E-01 cm3
c) 8.421E-01 cm3
d) 9.264E-01 cm3
e) 1.019E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
a) 1.214E+00 V
b) 1.457E+00 V
c) 1.749E+00 V
d) 2.099E+00 V
e) 2.518E+00 V

3) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

a) 5.047E-01 H
b) 5.552E-01 H
c) 6.107E-01 H
d) 6.717E-01 H
e) 7.389E-01 H

4) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

a) 4.950E-04 s
b) 5.445E-04 s
c) 5.989E-04 s
d) 6.588E-04 s
e) 7.247E-04 s

#### c14 X2

1) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

a) 1.118E+00 cm3
b) 1.229E+00 cm3
c) 1.352E+00 cm3
d) 1.487E+00 cm3
e) 1.636E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
a) 3.463E+00 V
b) 4.156E+00 V
c) 4.987E+00 V
d) 5.984E+00 V
e) 7.181E+00 V

3) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

a) 7.821E-04 s
b) 8.603E-04 s
c) 9.463E-04 s
d) 1.041E-03 s
e) 1.145E-03 s

4) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

a) 2.914E-01 H
b) 3.205E-01 H
c) 3.526E-01 H
d) 3.878E-01 H
e) 4.266E-01 H

### c14 Y0

1) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.856E-04 s
b) 4.242E-04 s
c) 4.666E-04 s
d) 5.133E-04 s
e) 5.646E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =2.47 s if ε = 7.04 V , R = 7.69 Ω, and L = 5.78 H?
a) 4.249E-01 V
b) 5.099E-01 V
c) 6.118E-01 V
d) 7.342E-01 V
e) 8.810E-01 V

3) An induced emf of 4.13V is measured across a coil of 70 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.63A in 0.133s. What is the self-inductance of the coil?

a) 1.726E-01 H
b) 1.899E-01 H
c) 2.089E-01 H
d) 2.297E-01 H
e) 2.527E-01 H

4) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

a) 1.118E+00 cm3
b) 1.229E+00 cm3
c) 1.352E+00 cm3
d) 1.487E+00 cm3
e) 1.636E+00 cm3

#### c14 Y1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
a) 5.369E-01 V
b) 6.443E-01 V
c) 7.732E-01 V
d) 9.278E-01 V
e) 1.113E+00 V

2) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H

3) A washer has an inner diameter of 2.2 cm and an outer diamter of 4.11 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.23mm}$, and ${\displaystyle n=2.74}$. What is the volume of the washer?

a) 7.110E-01 cm3
b) 7.821E-01 cm3
c) 8.603E-01 cm3
d) 9.463E-01 cm3
e) 1.041E+00 cm3

4) In an LC circuit, the self-inductance is 0.0776 H and the capacitance is 6.940E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.400E-05 C. How long does it take for the capacitor to become completely discharged?

a) 1.048E-03 s
b) 1.153E-03 s
c) 1.268E-03 s
d) 1.395E-03 s
e) 1.534E-03 s

#### c14 Y2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
a) 9.618E-01 V
b) 1.154E+00 V
c) 1.385E+00 V
d) 1.662E+00 V
e) 1.994E+00 V

2) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.316E-04 s
b) 6.948E-04 s
c) 7.643E-04 s
d) 8.407E-04 s
e) 9.248E-04 s

3) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

a) 5.047E-01 H
b) 5.552E-01 H
c) 6.107E-01 H
d) 6.717E-01 H
e) 7.389E-01 H

4) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

a) 1.228E+00 cm3
b) 1.351E+00 cm3
c) 1.486E+00 cm3
d) 1.634E+00 cm3
e) 1.798E+00 cm3

### c14 Z0

1) An induced emf of 1.7V is measured across a coil of 81 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.07A in 0.174s. What is the self-inductance of the coil?

a) 3.458E-02 H
b) 3.804E-02 H
c) 4.184E-02 H
d) 4.602E-02 H
e) 5.062E-02 H
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
a) -1.614E+00 s
b) -1.775E+00 s
c) -1.952E+00 s
d) -2.148E+00 s
e) -2.362E+00 s

3) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

a) 6.166E-04 s
b) 6.783E-04 s
c) 7.461E-04 s
d) 8.207E-04 s
e) 9.028E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
a) 6.033E-01 V
b) 7.240E-01 V
c) 8.688E-01 V
d) 1.043E+00 V
e) 1.251E+00 V

#### c14 Z1

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

a) 4.779E-01 H
b) 5.257E-01 H
c) 5.783E-01 H
d) 6.361E-01 H
e) 6.997E-01 H
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
a) -1.047E+00 s
b) -1.152E+00 s
c) -1.267E+00 s
d) -1.393E+00 s
e) -1.533E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.0 s if ε = 4.14 V , R = 7.92 Ω, and L = 2.26 H?
a) 3.523E-01 V
b) 4.227E-01 V
c) 5.073E-01 V
d) 6.087E-01 V
e) 7.304E-01 V

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

a) 3.886E-04 s
b) 4.275E-04 s
c) 4.702E-04 s
d) 5.172E-04 s
e) 5.689E-04 s

#### c14 Z2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
a) -1.345E+00 s
b) -1.480E+00 s
c) -1.628E+00 s
d) -1.790E+00 s
e) -1.969E+00 s

2) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

a) 2.428E+00 H
b) 2.671E+00 H
c) 2.938E+00 H
d) 3.232E+00 H
e) 3.555E+00 H
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
a) 5.736E-01 V
b) 6.884E-01 V
c) 8.260E-01 V
d) 9.912E-01 V
e) 1.189E+00 V

4) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

a) 7.821E-04 s
b) 8.603E-04 s
c) 9.463E-04 s
d) 1.041E-03 s
e) 1.145E-03 s

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### Key: A0

1) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

+a) 1.071E+00 cm3
-b) 1.178E+00 cm3
-c) 1.296E+00 cm3
-d) 1.425E+00 cm3
-e) 1.568E+00 cm3
2) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
+a) 6.604E-02 V
-b) 7.264E-02 V
-c) 7.990E-02 V
-d) 8.789E-02 V
-e) 9.668E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.96% of its maximum value if ε = 2.64 V , R = 6.37 Ω, and L = 7.33 H?
-a) -1.700E+00 s
-b) -1.870E+00 s
-c) -2.057E+00 s
+d) -2.262E+00 s
-e) -2.489E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
-a) 1.214E+00 V
-b) 1.457E+00 V
+c) 1.749E+00 V
-d) 2.099E+00 V
-e) 2.518E+00 V

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#### Key: A1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.01% of its maximum value if ε = 1.45 V , R = 4.4 Ω, and L = 2.36 H?
-a) -8.659E-01 s
-b) -9.525E-01 s
+c) -1.048E+00 s
-d) -1.153E+00 s
-e) -1.268E+00 s
2) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
-a) 2.229E-02 V
+b) 2.451E-02 V
-c) 2.697E-02 V
-d) 2.966E-02 V
-e) 3.263E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
+a) 9.902E-01 V
-b) 1.188E+00 V
-c) 1.426E+00 V
-d) 1.711E+00 V
-e) 2.053E+00 V

4) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3

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#### Key: A2

1) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 1.342E+00 cm3
+b) 1.477E+00 cm3
-c) 1.624E+00 cm3
-d) 1.787E+00 cm3
-e) 1.965E+00 cm3
2) A long solenoid has a length 0.605 meters, radius 4.26 cm, and 597 turns. It surrounds coil of radius 9.08 meters and 12turns. If the current in the solenoid is changing at a rate of 250 A/s, what is the emf induced in the surounding coil?
-a) 4.551E-02 V
-b) 5.006E-02 V
-c) 5.507E-02 V
-d) 6.057E-02 V
+e) 6.663E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.01 s if ε = 5.75 V , R = 5.73 Ω, and L = 7.46 H?
+a) 9.936E-01 V
-b) 1.192E+00 V
-c) 1.431E+00 V
-d) 1.717E+00 V
-e) 2.060E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s

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### Key: B0

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
-a) 5.369E-01 V
+b) 6.443E-01 V
-c) 7.732E-01 V
-d) 9.278E-01 V
-e) 1.113E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
+a) -3.137E-01 s
-b) -3.451E-01 s
-c) -3.796E-01 s
-d) -4.176E-01 s
-e) -4.593E-01 s

4) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 8.932E-01 cm3
-b) 9.825E-01 cm3
-c) 1.081E+00 cm3
+d) 1.189E+00 cm3
-e) 1.308E+00 cm3

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#### Key: B1

1) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.443E-04 s
-b) 5.988E-04 s
+c) 6.586E-04 s
-d) 7.245E-04 s
-e) 7.969E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
-a) -1.047E+00 s
+b) -1.152E+00 s
-c) -1.267E+00 s
-d) -1.393E+00 s
-e) -1.533E+00 s

3) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

+a) 1.097E+00 cm3
-b) 1.207E+00 cm3
-c) 1.328E+00 cm3
-d) 1.460E+00 cm3
-e) 1.606E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
-a) 3.463E+00 V
+b) 4.156E+00 V
-c) 4.987E+00 V
-d) 5.984E+00 V
-e) 7.181E+00 V

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#### Key: B2

1) A washer has an inner diameter of 2.6 cm and an outer diamter of 4.17 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.38mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

-a) 7.196E-01 cm3
-b) 7.916E-01 cm3
-c) 8.707E-01 cm3
+d) 9.578E-01 cm3
-e) 1.054E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
-a) 5.736E-01 V
-b) 6.884E-01 V
-c) 8.260E-01 V
-d) 9.912E-01 V
+e) 1.189E+00 V

3) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.251E-04 s
-b) 5.776E-04 s
+c) 6.354E-04 s
-d) 6.989E-04 s
-e) 7.688E-04 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
-a) -9.593E-01 s
-b) -1.055E+00 s
+c) -1.161E+00 s
-d) -1.277E+00 s
-e) -1.405E+00 s

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### Key: C0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
-a) 7.037E-01 V
-b) 8.444E-01 V
-c) 1.013E+00 V
-d) 1.216E+00 V
+e) 1.459E+00 V
2) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
+a) 6.604E-02 V
-b) 7.264E-02 V
-c) 7.990E-02 V
-d) 8.789E-02 V
-e) 9.668E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.65% of its maximum value if ε = 3.62 V , R = 4.07 Ω, and L = 7.19 H?
-a) -2.476E+00 s
-b) -2.724E+00 s
-c) -2.996E+00 s
-d) -3.296E+00 s
+e) -3.625E+00 s

4) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.070E-04 s
-b) 4.477E-04 s
-c) 4.925E-04 s
+d) 5.417E-04 s
-e) 5.959E-04 s

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#### Key: C1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
+a) -3.137E-01 s
-b) -3.451E-01 s
-c) -3.796E-01 s
-d) -4.176E-01 s
-e) -4.593E-01 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
-a) 7.635E-01 V
-b) 9.162E-01 V
-c) 1.099E+00 V
+d) 1.319E+00 V
-e) 1.583E+00 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.846E-04 s
-b) 5.330E-04 s
+c) 5.863E-04 s
-d) 6.449E-04 s
-e) 7.094E-04 s
4) A long solenoid has a length 0.794 meters, radius 4.45 cm, and 568 turns. It surrounds coil of radius 6.81 meters and 9turns. If the current in the solenoid is changing at a rate of 246 A/s, what is the emf induced in the surounding coil?
+a) 3.890E-02 V
-b) 4.279E-02 V
-c) 4.707E-02 V
-d) 5.177E-02 V
-e) 5.695E-02 V

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#### Key: C2

1) A long solenoid has a length 0.805 meters, radius 4.24 cm, and 536 turns. It surrounds coil of radius 8.5 meters and 16turns. If the current in the solenoid is changing at a rate of 278 A/s, what is the emf induced in the surounding coil?
+a) 6.604E-02 V
-b) 7.264E-02 V
-c) 7.990E-02 V
-d) 8.789E-02 V
-e) 9.668E-02 V

2) In an LC circuit, the self-inductance is 0.0735 H and the capacitance is 2.300E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.220E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.411E-04 s
-b) 4.852E-04 s
-c) 5.338E-04 s
-d) 5.871E-04 s
+e) 6.458E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
-a) -1.047E+00 s
+b) -1.152E+00 s
-c) -1.267E+00 s
-d) -1.393E+00 s
-e) -1.533E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V

Click these links for the keys:

### Key: D0

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.230E-04 s
-b) 6.853E-04 s
-c) 7.538E-04 s
-d) 8.292E-04 s
+e) 9.121E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
+a) 9.618E-01 V
-b) 1.154E+00 V
-c) 1.385E+00 V
-d) 1.662E+00 V
-e) 1.994E+00 V
4) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
-a) 2.229E-02 V
+b) 2.451E-02 V
-c) 2.697E-02 V
-d) 2.966E-02 V
-e) 3.263E-02 V

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#### Key: D1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
-a) 3.463E+00 V
+b) 4.156E+00 V
-c) 4.987E+00 V
-d) 5.984E+00 V
-e) 7.181E+00 V
2) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
+a) 3.446E-02 V
-b) 3.790E-02 V
-c) 4.169E-02 V
-d) 4.586E-02 V
-e) 5.045E-02 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s

4) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

-a) 4.535E-01 H
+b) 4.988E-01 H
-c) 5.487E-01 H
-d) 6.035E-01 H
-e) 6.639E-01 H

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#### Key: D2

1) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
-a) 4.476E-02 V
+b) 4.924E-02 V
-c) 5.416E-02 V
-d) 5.958E-02 V
-e) 6.553E-02 V

2) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s

3) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

-a) 2.428E+00 H
+b) 2.671E+00 H
-c) 2.938E+00 H
-d) 3.232E+00 H
-e) 3.555E+00 H
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
-a) 1.214E+00 V
-b) 1.457E+00 V
+c) 1.749E+00 V
-d) 2.099E+00 V
-e) 2.518E+00 V

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### Key: E0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V
2) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
-a) 1.986E-02 V
-b) 2.185E-02 V
+c) 2.404E-02 V
-d) 2.644E-02 V
-e) 2.908E-02 V

3) In an LC circuit, the self-inductance is 0.0776 H and the capacitance is 6.940E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.400E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 1.048E-03 s
+b) 1.153E-03 s
-c) 1.268E-03 s
-d) 1.395E-03 s
-e) 1.534E-03 s

4) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H

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#### Key: E1

1) A long solenoid has a length 0.777 meters, radius 3.45 cm, and 557 turns. It surrounds coil of radius 6.01 meters and 10turns. If the current in the solenoid is changing at a rate of 184 A/s, what is the emf induced in the surounding coil?
-a) 1.463E-02 V
-b) 1.609E-02 V
-c) 1.770E-02 V
+d) 1.947E-02 V
-e) 2.142E-02 V

2) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.856E-04 s
-b) 4.242E-04 s
+c) 4.666E-04 s
-d) 5.133E-04 s
-e) 5.646E-04 s

3) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

-a) 2.914E-01 H
-b) 3.205E-01 H
-c) 3.526E-01 H
-d) 3.878E-01 H
+e) 4.266E-01 H
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
-a) 7.635E-01 V
-b) 9.162E-01 V
-c) 1.099E+00 V
+d) 1.319E+00 V
-e) 1.583E+00 V

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#### Key: E2

1) An induced emf of 1.92V is measured across a coil of 74 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.38A in 0.69s. What is the self-inductance of the coil?

-a) 1.560E-01 H
-b) 1.716E-01 H
-c) 1.888E-01 H
+d) 2.076E-01 H
-e) 2.284E-01 H
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V

3) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
-a) 7.037E-01 V
-b) 8.444E-01 V
-c) 1.013E+00 V
-d) 1.216E+00 V
+e) 1.459E+00 V

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### Key: F0

1) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.443E-04 s
-b) 5.988E-04 s
+c) 6.586E-04 s
-d) 7.245E-04 s
-e) 7.969E-04 s

2) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

-a) 2.428E+00 H
+b) 2.671E+00 H
-c) 2.938E+00 H
-d) 3.232E+00 H
-e) 3.555E+00 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
-a) -9.593E-01 s
-b) -1.055E+00 s
+c) -1.161E+00 s
-d) -1.277E+00 s
-e) -1.405E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
-a) 6.033E-01 V
-b) 7.240E-01 V
-c) 8.688E-01 V
+d) 1.043E+00 V
-e) 1.251E+00 V

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#### Key: F1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
+a) 9.618E-01 V
-b) 1.154E+00 V
-c) 1.385E+00 V
-d) 1.662E+00 V
-e) 1.994E+00 V

2) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
-a) -2.296E+00 s
+b) -2.525E+00 s
-c) -2.778E+00 s
-d) -3.056E+00 s
-e) -3.361E+00 s

4) An induced emf of 1.7V is measured across a coil of 81 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.07A in 0.174s. What is the self-inductance of the coil?

-a) 3.458E-02 H
-b) 3.804E-02 H
+c) 4.184E-02 H
-d) 4.602E-02 H
-e) 5.062E-02 H

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#### Key: F2

1) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

-a) 2.914E-01 H
-b) 3.205E-01 H
-c) 3.526E-01 H
-d) 3.878E-01 H
+e) 4.266E-01 H

2) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 2.204E-04 s
-b) 2.425E-04 s
-c) 2.667E-04 s
-d) 2.934E-04 s
+e) 3.227E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
-a) -2.296E+00 s
+b) -2.525E+00 s
-c) -2.778E+00 s
-d) -3.056E+00 s
-e) -3.361E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =2.47 s if ε = 7.04 V , R = 7.69 Ω, and L = 5.78 H?
-a) 4.249E-01 V
-b) 5.099E-01 V
-c) 6.118E-01 V
-d) 7.342E-01 V
+e) 8.810E-01 V

Click these links for the keys:

### Key: G0

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V

3) A washer has an inner diameter of 2.46 cm and an outer diamter of 4.24 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.32mm}$, and ${\displaystyle n=2.63}$. What is the volume of the washer?

-a) 7.499E-01 cm3
-b) 8.249E-01 cm3
-c) 9.074E-01 cm3
-d) 9.982E-01 cm3
+e) 1.098E+00 cm3

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s

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#### Key: G1

1) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
-a) 2.229E-02 V
+b) 2.451E-02 V
-c) 2.697E-02 V
-d) 2.966E-02 V
-e) 3.263E-02 V

2) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

-a) 1.089E+00 cm3
-b) 1.198E+00 cm3
+c) 1.318E+00 cm3
-d) 1.449E+00 cm3
-e) 1.594E+00 cm3

3) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s

4) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

+a) 5.477E-01 H
-b) 6.024E-01 H
-c) 6.627E-01 H
-d) 7.290E-01 H
-e) 8.019E-01 H

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#### Key: G2

1) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V

2) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

-a) 1.228E+00 cm3
-b) 1.351E+00 cm3
-c) 1.486E+00 cm3
+d) 1.634E+00 cm3
-e) 1.798E+00 cm3

3) An induced emf of 6.78V is measured across a coil of 58 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.98A in 0.726s. What is the self-inductance of the coil?

-a) 1.022E+00 H
-b) 1.124E+00 H
+c) 1.237E+00 H
-d) 1.360E+00 H
-e) 1.496E+00 H

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s

Click these links for the keys:

### Key: H0

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
-a) 5.369E-01 V
+b) 6.443E-01 V
-c) 7.732E-01 V
-d) 9.278E-01 V
-e) 1.113E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
-a) -4.939E+00 s
-b) -5.433E+00 s
-c) -5.976E+00 s
-d) -6.574E+00 s
+e) -7.231E+00 s

4) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

-a) 1.118E+00 cm3
+b) 1.229E+00 cm3
-c) 1.352E+00 cm3
-d) 1.487E+00 cm3
-e) 1.636E+00 cm3

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#### Key: H1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V

3) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

+a) 1.071E+00 cm3
-b) 1.178E+00 cm3
-c) 1.296E+00 cm3
-d) 1.425E+00 cm3
-e) 1.568E+00 cm3

4) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.443E-04 s
-b) 5.988E-04 s
+c) 6.586E-04 s
-d) 7.245E-04 s
-e) 7.969E-04 s

Click these links for the keys:

#### Key: H2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
-a) 1.214E+00 V
-b) 1.457E+00 V
+c) 1.749E+00 V
-d) 2.099E+00 V
-e) 2.518E+00 V

3) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

+a) 8.141E-01 cm3
-b) 8.955E-01 cm3
-c) 9.850E-01 cm3
-d) 1.084E+00 cm3
-e) 1.192E+00 cm3

4) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.856E-04 s
-b) 4.242E-04 s
+c) 4.666E-04 s
-d) 5.133E-04 s
-e) 5.646E-04 s

Click these links for the keys:

### Key: I0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s

2) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 9.370E-04 s
-b) 1.031E-03 s
-c) 1.134E-03 s
+d) 1.247E-03 s
-e) 1.372E-03 s
3) A long solenoid has a length 0.896 meters, radius 4.28 cm, and 550 turns. It surrounds coil of radius 6.65 meters and 9turns. If the current in the solenoid is changing at a rate of 204 A/s, what is the emf induced in the surounding coil?
-a) 2.328E-02 V
+b) 2.560E-02 V
-c) 2.817E-02 V
-d) 3.098E-02 V
-e) 3.408E-02 V

4) An induced emf of 1.86V is measured across a coil of 59 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.58A in 0.89s. What is the self-inductance of the coil?

-a) 4.821E-01 H
-b) 5.303E-01 H
-c) 5.833E-01 H
+d) 6.416E-01 H
-e) 7.058E-01 H

Click these links for the keys:

#### Key: I1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s

2) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

-a) 4.535E-01 H
+b) 4.988E-01 H
-c) 5.487E-01 H
-d) 6.035E-01 H
-e) 6.639E-01 H

3) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.230E-04 s
-b) 6.853E-04 s
-c) 7.538E-04 s
-d) 8.292E-04 s
+e) 9.121E-04 s
4) A long solenoid has a length 0.974 meters, radius 4.72 cm, and 587 turns. It surrounds coil of radius 8.65 meters and 17turns. If the current in the solenoid is changing at a rate of 146 A/s, what is the emf induced in the surounding coil?
-a) 2.823E-02 V
-b) 3.105E-02 V
-c) 3.416E-02 V
-d) 3.757E-02 V
+e) 4.133E-02 V

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#### Key: I2

1) In an LC circuit, the self-inductance is 0.0735 H and the capacitance is 2.300E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.220E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.411E-04 s
-b) 4.852E-04 s
-c) 5.338E-04 s
-d) 5.871E-04 s
+e) 6.458E-04 s

2) An induced emf of 6.75V is measured across a coil of 79 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.76A in 0.115s. What is the self-inductance of the coil?

-a) 9.094E-02 H
+b) 1.000E-01 H
-c) 1.100E-01 H
-d) 1.210E-01 H
-e) 1.331E-01 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s
4) A long solenoid has a length 0.841 meters, radius 3.81 cm, and 516 turns. It surrounds coil of radius 9.2 meters and 11turns. If the current in the solenoid is changing at a rate of 190 A/s, what is the emf induced in the surounding coil?
-a) 1.735E-02 V
-b) 1.908E-02 V
-c) 2.099E-02 V
+d) 2.309E-02 V
-e) 2.540E-02 V

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### Key: J0

1) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

-a) 1.089E+00 cm3
-b) 1.198E+00 cm3
+c) 1.318E+00 cm3
-d) 1.449E+00 cm3
-e) 1.594E+00 cm3
2) A long solenoid has a length 0.89 meters, radius 3.01 cm, and 505 turns. It surrounds coil of radius 8.65 meters and 18turns. If the current in the solenoid is changing at a rate of 279 A/s, what is the emf induced in the surounding coil?
-a) 2.646E-02 V
-b) 2.911E-02 V
+c) 3.202E-02 V
-d) 3.522E-02 V
-e) 3.874E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.56 s if ε = 6.14 V , R = 7.96 Ω, and L = 6.65 H?
-a) 5.281E-01 V
-b) 6.337E-01 V
+c) 7.605E-01 V
-d) 9.126E-01 V
-e) 1.095E+00 V

4) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.251E-04 s
-b) 5.776E-04 s
+c) 6.354E-04 s
-d) 6.989E-04 s
-e) 7.688E-04 s

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#### Key: J1

1) In an LC circuit, the self-inductance is 0.0307 H and the capacitance is 5.330E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.840E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.251E-04 s
-b) 5.776E-04 s
+c) 6.354E-04 s
-d) 6.989E-04 s
-e) 7.688E-04 s
2) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
-a) 4.476E-02 V
+b) 4.924E-02 V
-c) 5.416E-02 V
-d) 5.958E-02 V
-e) 6.553E-02 V

3) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
-a) 3.682E-01 V
-b) 4.418E-01 V
-c) 5.301E-01 V
-d) 6.362E-01 V
+e) 7.634E-01 V

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#### Key: J2

1) A long solenoid has a length 0.559 meters, radius 4.6 cm, and 515 turns. It surrounds coil of radius 9.72 meters and 17turns. If the current in the solenoid is changing at a rate of 189 A/s, what is the emf induced in the surounding coil?
-a) 7.062E-02 V
+b) 7.768E-02 V
-c) 8.545E-02 V
-d) 9.400E-02 V
-e) 1.034E-01 V
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
+a) 4.518E-01 V
-b) 5.422E-01 V
-c) 6.506E-01 V
-d) 7.807E-01 V
-e) 9.369E-01 V

3) A washer has an inner diameter of 2.31 cm and an outer diamter of 4.19 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.14mm}$, and ${\displaystyle n=2.86}$. What is the volume of the washer?

+a) 1.071E+00 cm3
-b) 1.178E+00 cm3
-c) 1.296E+00 cm3
-d) 1.425E+00 cm3
-e) 1.568E+00 cm3

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s

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### Key: K0

1) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.85 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.7mm}$, and ${\displaystyle n=2.76}$. What is the volume of the washer?

-a) 1.038E+00 cm3
-b) 1.142E+00 cm3
+c) 1.256E+00 cm3
-d) 1.381E+00 cm3
-e) 1.520E+00 cm3

2) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 2.204E-04 s
-b) 2.425E-04 s
-c) 2.667E-04 s
-d) 2.934E-04 s
+e) 3.227E-04 s

3) An induced emf of 4.02V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.53A in 0.438s. What is the self-inductance of the coil?

-a) 4.535E-01 H
+b) 4.988E-01 H
-c) 5.487E-01 H
-d) 6.035E-01 H
-e) 6.639E-01 H
4) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V

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#### Key: K1

1) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.950E-04 s
-b) 5.445E-04 s
+c) 5.989E-04 s
-d) 6.588E-04 s
-e) 7.247E-04 s

2) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3
3) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
+a) 3.446E-02 V
-b) 3.790E-02 V
-c) 4.169E-02 V
-d) 4.586E-02 V
-e) 5.045E-02 V

4) An induced emf of 3.78V is measured across a coil of 99 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.36A in 0.821s. What is the self-inductance of the coil?

-a) 4.033E-01 H
-b) 4.436E-01 H
+c) 4.880E-01 H
-d) 5.367E-01 H
-e) 5.904E-01 H

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#### Key: K2

1) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

-a) 1.228E+00 cm3
-b) 1.351E+00 cm3
-c) 1.486E+00 cm3
+d) 1.634E+00 cm3
-e) 1.798E+00 cm3

2) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

-a) 2.914E-01 H
-b) 3.205E-01 H
-c) 3.526E-01 H
-d) 3.878E-01 H
+e) 4.266E-01 H
3) A long solenoid has a length 0.703 meters, radius 4.03 cm, and 542 turns. It surrounds coil of radius 6.58 meters and 9turns. If the current in the solenoid is changing at a rate of 208 A/s, what is the emf induced in the surounding coil?
-a) 2.643E-02 V
+b) 2.907E-02 V
-c) 3.198E-02 V
-d) 3.518E-02 V
-e) 3.869E-02 V

4) In an LC circuit, the self-inductance is 0.0237 H and the capacitance is 6.140E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.260E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.093E-04 s
-b) 4.502E-04 s
-c) 4.952E-04 s
-d) 5.447E-04 s
+e) 5.992E-04 s

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### Key: L0

1) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 8.932E-01 cm3
-b) 9.825E-01 cm3
-c) 1.081E+00 cm3
+d) 1.189E+00 cm3
-e) 1.308E+00 cm3
2) A long solenoid has a length 0.923 meters, radius 4.08 cm, and 579 turns. It surrounds coil of radius 6.86 meters and 14turns. If the current in the solenoid is changing at a rate of 139 A/s, what is the emf induced in the surounding coil?
-a) 1.894E-02 V
-b) 2.083E-02 V
-c) 2.291E-02 V
+d) 2.520E-02 V
-e) 2.772E-02 V

3) An induced emf of 1.92V is measured across a coil of 74 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.38A in 0.69s. What is the self-inductance of the coil?

-a) 1.560E-01 H
-b) 1.716E-01 H
-c) 1.888E-01 H
+d) 2.076E-01 H
-e) 2.284E-01 H

4) In an LC circuit, the self-inductance is 0.0273 H and the capacitance is 6.440E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.620E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 5.443E-04 s
-b) 5.988E-04 s
+c) 6.586E-04 s
-d) 7.245E-04 s
-e) 7.969E-04 s

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#### Key: L1

1) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

-a) 5.047E-01 H
-b) 5.552E-01 H
-c) 6.107E-01 H
+d) 6.717E-01 H
-e) 7.389E-01 H

2) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.856E-04 s
-b) 4.242E-04 s
+c) 4.666E-04 s
-d) 5.133E-04 s
-e) 5.646E-04 s
3) A long solenoid has a length 0.759 meters, radius 4.51 cm, and 542 turns. It surrounds coil of radius 9.59 meters and 13turns. If the current in the solenoid is changing at a rate of 272 A/s, what is the emf induced in the surounding coil?
-a) 5.791E-02 V
+b) 6.370E-02 V
-c) 7.007E-02 V
-d) 7.708E-02 V
-e) 8.478E-02 V

4) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

+a) 1.351E+00 cm3
-b) 1.486E+00 cm3
-c) 1.635E+00 cm3
-d) 1.798E+00 cm3
-e) 1.978E+00 cm3

Click these links for the keys:

#### Key: L2

1) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

+a) 1.351E+00 cm3
-b) 1.486E+00 cm3
-c) 1.635E+00 cm3
-d) 1.798E+00 cm3
-e) 1.978E+00 cm3

2) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

-a) 5.047E-01 H
-b) 5.552E-01 H
-c) 6.107E-01 H
+d) 6.717E-01 H
-e) 7.389E-01 H
3) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
-a) 2.229E-02 V
+b) 2.451E-02 V
-c) 2.697E-02 V
-d) 2.966E-02 V
-e) 3.263E-02 V

4) In an LC circuit, the self-inductance is 0.0464 H and the capacitance is 7.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.280E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 8.339E-04 s
+b) 9.173E-04 s
-c) 1.009E-03 s
-d) 1.110E-03 s
-e) 1.221E-03 s

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### Key: M0

1) An induced emf of 4.13V is measured across a coil of 70 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.63A in 0.133s. What is the self-inductance of the coil?

-a) 1.726E-01 H
-b) 1.899E-01 H
+c) 2.089E-01 H
-d) 2.297E-01 H
-e) 2.527E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
-a) -4.939E+00 s
-b) -5.433E+00 s
-c) -5.976E+00 s
-d) -6.574E+00 s
+e) -7.231E+00 s

4) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.846E-04 s
-b) 5.330E-04 s
+c) 5.863E-04 s
-d) 6.449E-04 s
-e) 7.094E-04 s

Click these links for the keys:

#### Key: M1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
+a) -3.137E-01 s
-b) -3.451E-01 s
-c) -3.796E-01 s
-d) -4.176E-01 s
-e) -4.593E-01 s

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.230E-04 s
-b) 6.853E-04 s
-c) 7.538E-04 s
-d) 8.292E-04 s
+e) 9.121E-04 s

3) An induced emf of 6.78V is measured across a coil of 58 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.98A in 0.726s. What is the self-inductance of the coil?

-a) 1.022E+00 H
-b) 1.124E+00 H
+c) 1.237E+00 H
-d) 1.360E+00 H
-e) 1.496E+00 H
4) A long solenoid has a length 0.777 meters, radius 3.45 cm, and 557 turns. It surrounds coil of radius 6.01 meters and 10turns. If the current in the solenoid is changing at a rate of 184 A/s, what is the emf induced in the surounding coil?
-a) 1.463E-02 V
-b) 1.609E-02 V
-c) 1.770E-02 V
+d) 1.947E-02 V
-e) 2.142E-02 V

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#### Key: M2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s

2) An induced emf of 4.7V is measured across a coil of 52 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.08A in 0.961s. What is the self-inductance of the coil?

-a) 1.102E+00 H
-b) 1.212E+00 H
-c) 1.333E+00 H
+d) 1.466E+00 H
-e) 1.613E+00 H

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.846E-04 s
-b) 5.330E-04 s
+c) 5.863E-04 s
-d) 6.449E-04 s
-e) 7.094E-04 s
4) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V

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### Key: N0

1) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

-a) 2.428E+00 H
+b) 2.671E+00 H
-c) 2.938E+00 H
-d) 3.232E+00 H
-e) 3.555E+00 H
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V

3) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.230E-04 s
-b) 6.853E-04 s
-c) 7.538E-04 s
-d) 8.292E-04 s
+e) 9.121E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
-a) 5.736E-01 V
-b) 6.884E-01 V
-c) 8.260E-01 V
-d) 9.912E-01 V
+e) 1.189E+00 V

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#### Key: N1

1) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

-a) 5.047E-01 H
-b) 5.552E-01 H
-c) 6.107E-01 H
+d) 6.717E-01 H
-e) 7.389E-01 H
2) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
-a) 1.214E+00 V
-b) 1.457E+00 V
+c) 1.749E+00 V
-d) 2.099E+00 V
-e) 2.518E+00 V

4) In an LC circuit, the self-inductance is 0.0464 H and the capacitance is 7.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.280E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 8.339E-04 s
+b) 9.173E-04 s
-c) 1.009E-03 s
-d) 1.110E-03 s
-e) 1.221E-03 s

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#### Key: N2

1) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 9.370E-04 s
-b) 1.031E-03 s
-c) 1.134E-03 s
+d) 1.247E-03 s
-e) 1.372E-03 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
-a) 6.033E-01 V
-b) 7.240E-01 V
-c) 8.688E-01 V
+d) 1.043E+00 V
-e) 1.251E+00 V

3) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

-a) 2.914E-01 H
-b) 3.205E-01 H
-c) 3.526E-01 H
-d) 3.878E-01 H
+e) 4.266E-01 H
4) A long solenoid has a length 0.974 meters, radius 4.72 cm, and 587 turns. It surrounds coil of radius 8.65 meters and 17turns. If the current in the solenoid is changing at a rate of 146 A/s, what is the emf induced in the surounding coil?
-a) 2.823E-02 V
-b) 3.105E-02 V
-c) 3.416E-02 V
-d) 3.757E-02 V
+e) 4.133E-02 V

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### Key: O0

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.87 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.39mm}$, and ${\displaystyle n=2.55}$. What is the volume of the washer?

-a) 7.754E-01 cm3
-b) 8.530E-01 cm3
-c) 9.383E-01 cm3
-d) 1.032E+00 cm3
+e) 1.135E+00 cm3
2) A long solenoid has a length 0.896 meters, radius 4.28 cm, and 550 turns. It surrounds coil of radius 6.65 meters and 9turns. If the current in the solenoid is changing at a rate of 204 A/s, what is the emf induced in the surounding coil?
-a) 2.328E-02 V
+b) 2.560E-02 V
-c) 2.817E-02 V
-d) 3.098E-02 V
-e) 3.408E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s

4) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s

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#### Key: O1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.78% of its maximum value if ε = 1.39 V , R = 2.88 Ω, and L = 4.06 H?
-a) -2.296E+00 s
+b) -2.525E+00 s
-c) -2.778E+00 s
-d) -3.056E+00 s
-e) -3.361E+00 s
2) A long solenoid has a length 0.567 meters, radius 3.35 cm, and 555 turns. It surrounds coil of radius 5.73 meters and 9turns. If the current in the solenoid is changing at a rate of 281 A/s, what is the emf induced in the surounding coil?
+a) 3.446E-02 V
-b) 3.790E-02 V
-c) 4.169E-02 V
-d) 4.586E-02 V
-e) 5.045E-02 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s

4) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.18 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.42mm}$, and ${\displaystyle n=2.62}$. What is the volume of the washer?

+a) 1.351E+00 cm3
-b) 1.486E+00 cm3
-c) 1.635E+00 cm3
-d) 1.798E+00 cm3
-e) 1.978E+00 cm3

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#### Key: O2

1) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.54% of its maximum value if ε = 2.46 V , R = 2.8 Ω, and L = 5.67 H?
-a) -2.540E+00 s
-b) -2.794E+00 s
-c) -3.073E+00 s
-d) -3.381E+00 s
+e) -3.719E+00 s
3) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V

4) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.62 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.66mm}$, and ${\displaystyle n=2.61}$. What is the volume of the washer?

-a) 6.960E-01 cm3
-b) 7.656E-01 cm3
+c) 8.421E-01 cm3
-d) 9.264E-01 cm3
-e) 1.019E+00 cm3

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### Key: P0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.82% of its maximum value if ε = 8.65 V , R = 3.02 Ω, and L = 1.75 H?
-a) -9.593E-01 s
-b) -1.055E+00 s
+c) -1.161E+00 s
-d) -1.277E+00 s
-e) -1.405E+00 s

2) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

+a) 8.141E-01 cm3
-b) 8.955E-01 cm3
-c) 9.850E-01 cm3
-d) 1.084E+00 cm3
-e) 1.192E+00 cm3
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V

4) In an LC circuit, the self-inductance is 0.0126 H and the capacitance is 3.350E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 2.204E-04 s
-b) 2.425E-04 s
-c) 2.667E-04 s
-d) 2.934E-04 s
+e) 3.227E-04 s

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#### Key: P1

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.87 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.39mm}$, and ${\displaystyle n=2.55}$. What is the volume of the washer?

-a) 7.754E-01 cm3
-b) 8.530E-01 cm3
-c) 9.383E-01 cm3
-d) 1.032E+00 cm3
+e) 1.135E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.67 s if ε = 5.58 V , R = 3.81 Ω, and L = 3.85 H?
-a) 7.037E-01 V
-b) 8.444E-01 V
-c) 1.013E+00 V
-d) 1.216E+00 V
+e) 1.459E+00 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.65% of its maximum value if ε = 3.62 V , R = 4.07 Ω, and L = 7.19 H?
-a) -2.476E+00 s
-b) -2.724E+00 s
-c) -2.996E+00 s
-d) -3.296E+00 s
+e) -3.625E+00 s

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s

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#### Key: P2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
+a) 9.618E-01 V
-b) 1.154E+00 V
-c) 1.385E+00 V
-d) 1.662E+00 V
-e) 1.994E+00 V

2) A washer has an inner diameter of 2.62 cm and an outer diamter of 4.79 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.08mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

+a) 1.056E+00 cm3
-b) 1.161E+00 cm3
-c) 1.278E+00 cm3
-d) 1.405E+00 cm3
-e) 1.546E+00 cm3

3) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 9.370E-04 s
-b) 1.031E-03 s
-c) 1.134E-03 s
+d) 1.247E-03 s
-e) 1.372E-03 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.63% of its maximum value if ε = 8.7 V , R = 8.35 Ω, and L = 1.44 H?
+a) -3.137E-01 s
-b) -3.451E-01 s
-c) -3.796E-01 s
-d) -4.176E-01 s
-e) -4.593E-01 s

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### Key: Q0

1) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 7.821E-04 s
-b) 8.603E-04 s
-c) 9.463E-04 s
-d) 1.041E-03 s
+e) 1.145E-03 s

2) An induced emf of 8.76V is measured across a coil of 62 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.59A in 0.611s. What is the self-inductance of the coil?

-a) 7.913E-01 H
-b) 8.704E-01 H
+c) 9.575E-01 H
-d) 1.053E+00 H
-e) 1.159E+00 H
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
-a) 7.635E-01 V
-b) 9.162E-01 V
-c) 1.099E+00 V
+d) 1.319E+00 V
-e) 1.583E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.43% of its maximum value if ε = 1.64 V , R = 8.3 Ω, and L = 1.61 H?
+a) -4.120E-01 s
-b) -4.532E-01 s
-c) -4.985E-01 s
-d) -5.483E-01 s
-e) -6.031E-01 s

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#### Key: Q1

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H

2) In an LC circuit, the self-inductance is 0.0399 H and the capacitance is 8.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.480E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.230E-04 s
-b) 6.853E-04 s
-c) 7.538E-04 s
-d) 8.292E-04 s
+e) 9.121E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
+a) 9.618E-01 V
-b) 1.154E+00 V
-c) 1.385E+00 V
-d) 1.662E+00 V
-e) 1.994E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.01% of its maximum value if ε = 1.45 V , R = 4.4 Ω, and L = 2.36 H?
-a) -8.659E-01 s
-b) -9.525E-01 s
+c) -1.048E+00 s
-d) -1.153E+00 s
-e) -1.268E+00 s

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#### Key: Q2

1) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.846E-04 s
-b) 5.330E-04 s
+c) 5.863E-04 s
-d) 6.449E-04 s
-e) 7.094E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.741 s if ε = 7.36 V , R = 5.33 Ω, and L = 1.27 H?
-a) 7.635E-01 V
-b) 9.162E-01 V
-c) 1.099E+00 V
+d) 1.319E+00 V
-e) 1.583E+00 V

4) An induced emf of 6.75V is measured across a coil of 79 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.76A in 0.115s. What is the self-inductance of the coil?

-a) 9.094E-02 H
+b) 1.000E-01 H
-c) 1.100E-01 H
-d) 1.210E-01 H
-e) 1.331E-01 H

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### Key: R0

1) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.950E-04 s
-b) 5.445E-04 s
+c) 5.989E-04 s
-d) 6.588E-04 s
-e) 7.247E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =13.6 s if ε = 6.56 V , R = 2.44 Ω, and L = 8.76 H?
+a) 2.627E+00 V
-b) 3.153E+00 V
-c) 3.783E+00 V
-d) 4.540E+00 V
-e) 5.448E+00 V

3) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3

4) An induced emf of 5.08V is measured across a coil of 78 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.07A in 0.681s. What is the self-inductance of the coil?

-a) 4.660E-01 H
-b) 5.127E-01 H
-c) 5.639E-01 H
-d) 6.203E-01 H
+e) 6.823E-01 H

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#### Key: R1

1) An induced emf of 8.76V is measured across a coil of 62 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.59A in 0.611s. What is the self-inductance of the coil?

-a) 7.913E-01 H
-b) 8.704E-01 H
+c) 9.575E-01 H
-d) 1.053E+00 H
-e) 1.159E+00 H
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
-a) 6.033E-01 V
-b) 7.240E-01 V
-c) 8.688E-01 V
+d) 1.043E+00 V
-e) 1.251E+00 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.846E-04 s
-b) 5.330E-04 s
+c) 5.863E-04 s
-d) 6.449E-04 s
-e) 7.094E-04 s

4) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3

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#### Key: R2

1) An induced emf of 5.08V is measured across a coil of 78 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.07A in 0.681s. What is the self-inductance of the coil?

-a) 4.660E-01 H
-b) 5.127E-01 H
-c) 5.639E-01 H
-d) 6.203E-01 H
+e) 6.823E-01 H

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 4.489E-04 s
-b) 4.938E-04 s
-c) 5.432E-04 s
-d) 5.975E-04 s
-e) 6.572E-04 s

3) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 1.342E+00 cm3
+b) 1.477E+00 cm3
-c) 1.624E+00 cm3
-d) 1.787E+00 cm3
-e) 1.965E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
+a) 4.518E-01 V
-b) 5.422E-01 V
-c) 6.506E-01 V
-d) 7.807E-01 V
-e) 9.369E-01 V

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### Key: S0

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s
2) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
-a) 4.476E-02 V
+b) 4.924E-02 V
-c) 5.416E-02 V
-d) 5.958E-02 V
-e) 6.553E-02 V

3) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 1.342E+00 cm3
+b) 1.477E+00 cm3
-c) 1.624E+00 cm3
-d) 1.787E+00 cm3
-e) 1.965E+00 cm3
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?
+a) 4.518E-01 V
-b) 5.422E-01 V
-c) 6.506E-01 V
-d) 7.807E-01 V
-e) 9.369E-01 V

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#### Key: S1

1) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

+a) 8.141E-01 cm3
-b) 8.955E-01 cm3
-c) 9.850E-01 cm3
-d) 1.084E+00 cm3
-e) 1.192E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =13.6 s if ε = 6.56 V , R = 2.44 Ω, and L = 8.76 H?
+a) 2.627E+00 V
-b) 3.153E+00 V
-c) 3.783E+00 V
-d) 4.540E+00 V
-e) 5.448E+00 V
3) A long solenoid has a length 0.784 meters, radius 3.57 cm, and 553 turns. It surrounds coil of radius 9.49 meters and 16turns. If the current in the solenoid is changing at a rate of 276 A/s, what is the emf induced in the surounding coil?
-a) 4.476E-02 V
+b) 4.924E-02 V
-c) 5.416E-02 V
-d) 5.958E-02 V
-e) 6.553E-02 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s

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#### Key: S2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.0 s if ε = 4.14 V , R = 7.92 Ω, and L = 2.26 H?
-a) 3.523E-01 V
-b) 4.227E-01 V
+c) 5.073E-01 V
-d) 6.087E-01 V
-e) 7.304E-01 V
2) A long solenoid has a length 0.864 meters, radius 3.37 cm, and 522 turns. It surrounds coil of radius 7.87 meters and 13turns. If the current in the solenoid is changing at a rate of 290 A/s, what is the emf induced in the surounding coil?
-a) 2.917E-02 V
+b) 3.208E-02 V
-c) 3.529E-02 V
-d) 3.882E-02 V
-e) 4.270E-02 V
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.56% of its maximum value if ε = 4.22 V , R = 1.89 Ω, and L = 6.57 H?
-a) -4.939E+00 s
-b) -5.433E+00 s
-c) -5.976E+00 s
-d) -6.574E+00 s
+e) -7.231E+00 s

4) A washer has an inner diameter of 2.3 cm and an outer diamter of 4.44 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.31mm}$, and ${\displaystyle n=2.66}$. What is the volume of the washer?

-a) 1.089E+00 cm3
-b) 1.198E+00 cm3
+c) 1.318E+00 cm3
-d) 1.449E+00 cm3
-e) 1.594E+00 cm3

Click these links for the keys:

### Key: T0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
+a) 9.902E-01 V
-b) 1.188E+00 V
-c) 1.426E+00 V
-d) 1.711E+00 V
-e) 2.053E+00 V

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 4.489E-04 s
-b) 4.938E-04 s
-c) 5.432E-04 s
-d) 5.975E-04 s
-e) 6.572E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.7% of its maximum value if ε = 7.67 V , R = 2.45 Ω, and L = 7.81 H?
+a) -5.757E+00 s
-b) -6.333E+00 s
-c) -6.966E+00 s
-d) -7.663E+00 s
-e) -8.429E+00 s

4) A washer has an inner diameter of 2.42 cm and an outer diamter of 4.53 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.47mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 8.932E-01 cm3
-b) 9.825E-01 cm3
-c) 1.081E+00 cm3
+d) 1.189E+00 cm3
-e) 1.308E+00 cm3

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#### Key: T1

1) A washer has an inner diameter of 2.37 cm and an outer diamter of 4.84 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.67mm}$, and ${\displaystyle n=2.56}$. What is the volume of the washer?

+a) 1.570E+00 cm3
-b) 1.727E+00 cm3
-c) 1.900E+00 cm3
-d) 2.090E+00 cm3
-e) 2.299E+00 cm3

2) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.070E-04 s
-b) 4.477E-04 s
-c) 4.925E-04 s
+d) 5.417E-04 s
-e) 5.959E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
-a) -1.047E+00 s
+b) -1.152E+00 s
-c) -1.267E+00 s
-d) -1.393E+00 s
-e) -1.533E+00 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
-a) 3.682E-01 V
-b) 4.418E-01 V
-c) 5.301E-01 V
-d) 6.362E-01 V
+e) 7.634E-01 V

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#### Key: T2

1) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

+a) 1.097E+00 cm3
-b) 1.207E+00 cm3
-c) 1.328E+00 cm3
-d) 1.460E+00 cm3
-e) 1.606E+00 cm3
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.16% of its maximum value if ε = 4.79 V , R = 4.37 Ω, and L = 5.29 H?
-a) -2.110E+00 s
+b) -2.321E+00 s
-c) -2.553E+00 s
-d) -2.809E+00 s
-e) -3.090E+00 s

3) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 7.821E-04 s
-b) 8.603E-04 s
-c) 9.463E-04 s
-d) 1.041E-03 s
+e) 1.145E-03 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
-a) 3.463E+00 V
+b) 4.156E+00 V
-c) 4.987E+00 V
-d) 5.984E+00 V
-e) 7.181E+00 V

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### Key: U0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
-a) 6.033E-01 V
-b) 7.240E-01 V
-c) 8.688E-01 V
+d) 1.043E+00 V
-e) 1.251E+00 V

2) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s

4) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

+a) 8.141E-01 cm3
-b) 8.955E-01 cm3
-c) 9.850E-01 cm3
-d) 1.084E+00 cm3
-e) 1.192E+00 cm3

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#### Key: U1

1) A washer has an inner diameter of 2.62 cm and an outer diamter of 4.79 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.08mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

+a) 1.056E+00 cm3
-b) 1.161E+00 cm3
-c) 1.278E+00 cm3
-d) 1.405E+00 cm3
-e) 1.546E+00 cm3

2) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.43% of its maximum value if ε = 1.64 V , R = 8.3 Ω, and L = 1.61 H?
+a) -4.120E-01 s
-b) -4.532E-01 s
-c) -4.985E-01 s
-d) -5.483E-01 s
-e) -6.031E-01 s

Click these links for the keys:

#### Key: U2

1) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.16% of its maximum value if ε = 4.79 V , R = 4.37 Ω, and L = 5.29 H?
-a) -2.110E+00 s
+b) -2.321E+00 s
-c) -2.553E+00 s
-d) -2.809E+00 s
-e) -3.090E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
-a) 3.463E+00 V
+b) 4.156E+00 V
-c) 4.987E+00 V
-d) 5.984E+00 V
-e) 7.181E+00 V

4) A washer has an inner diameter of 2.36 cm and an outer diamter of 4.5 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.28mm}$, and ${\displaystyle n=2.4}$. What is the volume of the washer?

+a) 1.097E+00 cm3
-b) 1.207E+00 cm3
-c) 1.328E+00 cm3
-d) 1.460E+00 cm3
-e) 1.606E+00 cm3

Click these links for the keys:

### Key: V0

1) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

-a) 1.228E+00 cm3
-b) 1.351E+00 cm3
-c) 1.486E+00 cm3
+d) 1.634E+00 cm3
-e) 1.798E+00 cm3

2) An induced emf of 2.9V is measured across a coil of 51 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.89A in 0.806s. What is the self-inductance of the coil?

-a) 2.549E-01 H
-b) 2.804E-01 H
-c) 3.084E-01 H
+d) 3.392E-01 H
-e) 3.732E-01 H
3) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.44% of its maximum value if ε = 5.95 V , R = 7.26 Ω, and L = 1.29 H?
-a) -3.114E-01 s
-b) -3.425E-01 s
+c) -3.767E-01 s
-d) -4.144E-01 s
-e) -4.559E-01 s
4) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V

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#### Key: V1

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s
2) A long solenoid has a length 0.822 meters, radius 4.37 cm, and 515 turns. It surrounds coil of radius 6.12 meters and 14turns. If the current in the solenoid is changing at a rate of 118 A/s, what is the emf induced in the surounding coil?
-a) 2.229E-02 V
+b) 2.451E-02 V
-c) 2.697E-02 V
-d) 2.966E-02 V
-e) 3.263E-02 V

3) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

+a) 5.477E-01 H
-b) 6.024E-01 H
-c) 6.627E-01 H
-d) 7.290E-01 H
-e) 8.019E-01 H

4) A washer has an inner diameter of 2.74 cm and an outer diamter of 4.71 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.9mm}$, and ${\displaystyle n=2.85}$. What is the volume of the washer?

+a) 8.141E-01 cm3
-b) 8.955E-01 cm3
-c) 9.850E-01 cm3
-d) 1.084E+00 cm3
-e) 1.192E+00 cm3

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#### Key: V2

1) An induced emf of 4.7V is measured across a coil of 52 closely wound turns while the current throuth it increases uniformly from 0.0 to 3.08A in 0.961s. What is the self-inductance of the coil?

-a) 1.102E+00 H
-b) 1.212E+00 H
-c) 1.333E+00 H
+d) 1.466E+00 H
-e) 1.613E+00 H

2) A washer has an inner diameter of 2.16 cm and an outer diamter of 4.82 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.22mm}$, and ${\displaystyle n=2.8}$. What is the volume of the washer?

-a) 1.342E+00 cm3
+b) 1.477E+00 cm3
-c) 1.624E+00 cm3
-d) 1.787E+00 cm3
-e) 1.965E+00 cm3
3) A long solenoid has a length 0.667 meters, radius 4.41 cm, and 517 turns. It surrounds coil of radius 9.18 meters and 9turns. If the current in the solenoid is changing at a rate of 296 A/s, what is the emf induced in the surounding coil?
-a) 4.116E-02 V
-b) 4.528E-02 V
+c) 4.981E-02 V
-d) 5.479E-02 V
-e) 6.027E-02 V
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.69% of its maximum value if ε = 4.79 V , R = 4.18 Ω, and L = 2.7 H?
-a) -8.773E-01 s
-b) -9.651E-01 s
-c) -1.062E+00 s
+d) -1.168E+00 s
-e) -1.284E+00 s

Click these links for the keys:

### Key: W0

1) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 4.489E-04 s
-b) 4.938E-04 s
-c) 5.432E-04 s
-d) 5.975E-04 s
-e) 6.572E-04 s
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.01 s if ε = 5.75 V , R = 5.73 Ω, and L = 7.46 H?
+a) 9.936E-01 V
-b) 1.192E+00 V
-c) 1.431E+00 V
-d) 1.717E+00 V
-e) 2.060E+00 V
4) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
-a) 1.986E-02 V
-b) 2.185E-02 V
+c) 2.404E-02 V
-d) 2.644E-02 V
-e) 2.908E-02 V

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#### Key: W1

1) A long solenoid has a length 0.559 meters, radius 4.6 cm, and 515 turns. It surrounds coil of radius 9.72 meters and 17turns. If the current in the solenoid is changing at a rate of 189 A/s, what is the emf induced in the surounding coil?
-a) 7.062E-02 V
+b) 7.768E-02 V
-c) 8.545E-02 V
-d) 9.400E-02 V
-e) 1.034E-01 V
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =6.45 s if ε = 7.01 V , R = 7.04 Ω, and L = 8.75 H?
+a) 9.902E-01 V
-b) 1.188E+00 V
-c) 1.426E+00 V
-d) 1.711E+00 V
-e) 2.053E+00 V

3) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s
4) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s

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#### Key: W2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?
-a) 3.682E-01 V
-b) 4.418E-01 V
-c) 5.301E-01 V
-d) 6.362E-01 V
+e) 7.634E-01 V

3) In an LC circuit, the self-inductance is 0.0262 H and the capacitance is 4.540E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.700E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.070E-04 s
-b) 4.477E-04 s
-c) 4.925E-04 s
+d) 5.417E-04 s
-e) 5.959E-04 s
4) A long solenoid has a length 0.634 meters, radius 3.04 cm, and 522 turns. It surrounds coil of radius 9.17 meters and 9turns. If the current in the solenoid is changing at a rate of 283 A/s, what is the emf induced in the surounding coil?
-a) 1.986E-02 V
-b) 2.185E-02 V
+c) 2.404E-02 V
-d) 2.644E-02 V
-e) 2.908E-02 V

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### Key: X0

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?
-a) 6.567E-01 V
-b) 7.880E-01 V
-c) 9.456E-01 V
+d) 1.135E+00 V
-e) 1.362E+00 V

2) In an LC circuit, the self-inductance is 0.0795 H and the capacitance is 7.930E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 2.420E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 9.370E-04 s
-b) 1.031E-03 s
-c) 1.134E-03 s
+d) 1.247E-03 s
-e) 1.372E-03 s

3) A washer has an inner diameter of 2.23 cm and an outer diamter of 4.85 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.7mm}$, and ${\displaystyle n=2.76}$. What is the volume of the washer?

-a) 1.038E+00 cm3
-b) 1.142E+00 cm3
+c) 1.256E+00 cm3
-d) 1.381E+00 cm3
-e) 1.520E+00 cm3

4) An induced emf of 5.4V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.03A in 0.713s. What is the self-inductance of the coil?

+a) 5.477E-01 H
-b) 6.024E-01 H
-c) 6.627E-01 H
-d) 7.290E-01 H
-e) 8.019E-01 H

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#### Key: X1

1) A washer has an inner diameter of 2.75 cm and an outer diamter of 4.62 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.66mm}$, and ${\displaystyle n=2.61}$. What is the volume of the washer?

-a) 6.960E-01 cm3
-b) 7.656E-01 cm3
+c) 8.421E-01 cm3
-d) 9.264E-01 cm3
-e) 1.019E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =7.72 s if ε = 2.79 V , R = 1.56 Ω, and L = 3.16 H?
-a) 1.214E+00 V
-b) 1.457E+00 V
+c) 1.749E+00 V
-d) 2.099E+00 V
-e) 2.518E+00 V

3) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

-a) 5.047E-01 H
-b) 5.552E-01 H
-c) 6.107E-01 H
+d) 6.717E-01 H
-e) 7.389E-01 H

4) In an LC circuit, the self-inductance is 0.0689 H and the capacitance is 2.110E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.220E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 4.950E-04 s
-b) 5.445E-04 s
+c) 5.989E-04 s
-d) 6.588E-04 s
-e) 7.247E-04 s

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#### Key: X2

1) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

-a) 1.118E+00 cm3
+b) 1.229E+00 cm3
-c) 1.352E+00 cm3
-d) 1.487E+00 cm3
-e) 1.636E+00 cm3
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =20.1 s if ε = 5.77 V , R = 1.38 Ω, and L = 5.45 H?
-a) 3.463E+00 V
+b) 4.156E+00 V
-c) 4.987E+00 V
-d) 5.984E+00 V
-e) 7.181E+00 V

3) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 7.821E-04 s
-b) 8.603E-04 s
-c) 9.463E-04 s
-d) 1.041E-03 s
+e) 1.145E-03 s

4) An induced emf of 7.48V is measured across a coil of 95 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.33A in 0.304s. What is the self-inductance of the coil?

-a) 2.914E-01 H
-b) 3.205E-01 H
-c) 3.526E-01 H
-d) 3.878E-01 H
+e) 4.266E-01 H

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### Key: Y0

1) In an LC circuit, the self-inductance is 0.025 H and the capacitance is 3.530E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 7.770E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.856E-04 s
-b) 4.242E-04 s
+c) 4.666E-04 s
-d) 5.133E-04 s
-e) 5.646E-04 s
2) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =2.47 s if ε = 7.04 V , R = 7.69 Ω, and L = 5.78 H?
-a) 4.249E-01 V
-b) 5.099E-01 V
-c) 6.118E-01 V
-d) 7.342E-01 V
+e) 8.810E-01 V

3) An induced emf of 4.13V is measured across a coil of 70 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.63A in 0.133s. What is the self-inductance of the coil?

-a) 1.726E-01 H
-b) 1.899E-01 H
+c) 2.089E-01 H
-d) 2.297E-01 H
-e) 2.527E-01 H

4) A washer has an inner diameter of 2.38 cm and an outer diamter of 4.83 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.92mm}$, and ${\displaystyle n=2.68}$. What is the volume of the washer?

-a) 1.118E+00 cm3
+b) 1.229E+00 cm3
-c) 1.352E+00 cm3
-d) 1.487E+00 cm3
-e) 1.636E+00 cm3

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#### Key: Y1

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.8 s if ε = 3.36 V , R = 5.2 Ω, and L = 3.37 H?
-a) 5.369E-01 V
+b) 6.443E-01 V
-c) 7.732E-01 V
-d) 9.278E-01 V
-e) 1.113E+00 V

2) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H

3) A washer has an inner diameter of 2.2 cm and an outer diamter of 4.11 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=3.23mm}$, and ${\displaystyle n=2.74}$. What is the volume of the washer?

-a) 7.110E-01 cm3
-b) 7.821E-01 cm3
-c) 8.603E-01 cm3
+d) 9.463E-01 cm3
-e) 1.041E+00 cm3

4) In an LC circuit, the self-inductance is 0.0776 H and the capacitance is 6.940E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 3.400E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 1.048E-03 s
+b) 1.153E-03 s
-c) 1.268E-03 s
-d) 1.395E-03 s
-e) 1.534E-03 s

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#### Key: Y2

1) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =3.96 s if ε = 4.92 V , R = 5.02 Ω, and L = 5.0 H?
+a) 9.618E-01 V
-b) 1.154E+00 V
-c) 1.385E+00 V
-d) 1.662E+00 V
-e) 1.994E+00 V

2) In an LC circuit, the self-inductance is 0.035 H and the capacitance is 4.620E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.250E-05 C. How long does it take for the capacitor to become completely discharged?

+a) 6.316E-04 s
-b) 6.948E-04 s
-c) 7.643E-04 s
-d) 8.407E-04 s
-e) 9.248E-04 s

3) An induced emf of 7.94V is measured across a coil of 94 closely wound turns while the current throuth it increases uniformly from 0.0 to 5.65A in 0.478s. What is the self-inductance of the coil?

-a) 5.047E-01 H
-b) 5.552E-01 H
-c) 6.107E-01 H
+d) 6.717E-01 H
-e) 7.389E-01 H

4) A washer has an inner diameter of 2.12 cm and an outer diamter of 4.47 cm. The thickness is ${\displaystyle h=Cr^{-n}}$ where ${\displaystyle r}$ is measured in cm, ${\displaystyle C=4.7mm}$, and ${\displaystyle n=2.72}$. What is the volume of the washer?

-a) 1.228E+00 cm3
-b) 1.351E+00 cm3
-c) 1.486E+00 cm3
+d) 1.634E+00 cm3
-e) 1.798E+00 cm3

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### Key: Z0

1) An induced emf of 1.7V is measured across a coil of 81 closely wound turns while the current throuth it increases uniformly from 0.0 to 7.07A in 0.174s. What is the self-inductance of the coil?

-a) 3.458E-02 H
-b) 3.804E-02 H
+c) 4.184E-02 H
-d) 4.602E-02 H
-e) 5.062E-02 H
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.59% of its maximum value if ε = 1.14 V , R = 6.17 Ω, and L = 5.45 H?
+a) -1.614E+00 s
-b) -1.775E+00 s
-c) -1.952E+00 s
-d) -2.148E+00 s
-e) -2.362E+00 s

3) In an LC circuit, the self-inductance is 0.0424 H and the capacitance is 7.790E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.230E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 6.166E-04 s
-b) 6.783E-04 s
-c) 7.461E-04 s
-d) 8.207E-04 s
+e) 9.028E-04 s
4) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =0.919 s if ε = 6.65 V , R = 6.34 Ω, and L = 1.14 H?
-a) 6.033E-01 V
-b) 7.240E-01 V
-c) 8.688E-01 V
+d) 1.043E+00 V
-e) 1.251E+00 V

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#### Key: Z1

1) An induced emf of 5.33V is measured across a coil of 77 closely wound turns while the current throuth it increases uniformly from 0.0 to 6.57A in 0.648s. What is the self-inductance of the coil?

-a) 4.779E-01 H
+b) 5.257E-01 H
-c) 5.783E-01 H
-d) 6.361E-01 H
-e) 6.997E-01 H
2) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 1.67% of its maximum value if ε = 5.07 V , R = 7.8 Ω, and L = 4.39 H?
-a) -1.047E+00 s
+b) -1.152E+00 s
-c) -1.267E+00 s
-d) -1.393E+00 s
-e) -1.533E+00 s
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.0 s if ε = 4.14 V , R = 7.92 Ω, and L = 2.26 H?
-a) 3.523E-01 V
-b) 4.227E-01 V
+c) 5.073E-01 V
-d) 6.087E-01 V
-e) 7.304E-01 V

4) In an LC circuit, the self-inductance is 0.0156 H and the capacitance is 6.950E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 4.830E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 3.886E-04 s
-b) 4.275E-04 s
-c) 4.702E-04 s
+d) 5.172E-04 s
-e) 5.689E-04 s

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#### Key: Z2

1) Suppose switch S1 in the figure shown was closed and remained closed long enough to acheive steady state. At t=0 S1 is opened as as S2 is closed. How long will it take for the energy stored in the inductor to be reduced to 2.23% of its maximum value if ε = 3.13 V , R = 3.59 Ω, and L = 3.38 H?
-a) -1.345E+00 s
-b) -1.480E+00 s
-c) -1.628E+00 s
+d) -1.790E+00 s
-e) -1.969E+00 s

2) An induced emf of 6.29V is measured across a coil of 85 closely wound turns while the current throuth it increases uniformly from 0.0 to 2.15A in 0.913s. What is the self-inductance of the coil?

-a) 2.428E+00 H
+b) 2.671E+00 H
-c) 2.938E+00 H
-d) 3.232E+00 H
-e) 3.555E+00 H
3) Suppose switch S1 is suddenly closed at time t=0 in the figure shown. What is the current at t =1.95 s if ε = 8.33 V , R = 6.96 Ω, and L = 2.66 H?
-a) 5.736E-01 V
-b) 6.884E-01 V
-c) 8.260E-01 V
-d) 9.912E-01 V
+e) 1.189E+00 V

4) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

-a) 7.821E-04 s
-b) 8.603E-04 s
-c) 9.463E-04 s
-d) 1.041E-03 s
+e) 1.145E-03 s

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