Physics equations/21-Circuits, Bioelectricity, and DC Instruments/Q:circuits/Testbank

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a21CircuitsBioInstDC_circuits_v1

An ideal 5.2 V voltage source is connected to two resistors in parallel. One is 1.2$k\Omega$, and the other is 2.8 $k\Omega$. What is the current through the larger resistor?

	a) 0.7 mA.
	b) 0.9 mA.
	c) 1.1 mA.
	d) 1.3 mA.
	e) 1.5 mA.

copies

===2=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 6.1 V voltage source is connected to two resistors in parallel. One is 2.4<math>k\Omega</math>, and the other is 4.2 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.61 mA. -b) 0.7 mA. -c) 0.8 mA. +d) 0.92 mA. -e) 1.06 mA. ===3=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 3.1 V voltage source is connected to two resistors in parallel. One is 1.5<math>k\Omega</math>, and the other is 2.2 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.55 mA. -b) 0.63 mA. -c) 0.73 mA. +d) 0.84 mA. -e) 0.96 mA. ===4=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 7.9 V voltage source is connected to two resistors in parallel. One is 2.4<math>k\Omega</math>, and the other is 5.2 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.68 mA. -b) 0.79 mA. -c) 0.9 mA. +d) 1.04 mA. -e) 1.2 mA. ===5=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 5.6 V voltage source is connected to two resistors in parallel. One is 2.3<math>k\Omega</math>, and the other is 4.3 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.56 mA. -b) 0.64 mA. -c) 0.74 mA. +d) 0.85 mA. -e) 0.98 mA. ===6=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 9.9 V voltage source is connected to two resistors in parallel. One is 0.9<math>k\Omega</math>, and the other is 1.8 <math>k\Omega</math>. What is the current through the larger resistor?} +a) 3.67 mA. -b) 4.22 mA. -c) 4.85 mA. -d) 5.58 mA. -e) 6.41 mA. ===7=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 9.2 V voltage source is connected to two resistors in parallel. One is 1.1<math>k\Omega</math>, and the other is 2.4 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 2.29 mA. +b) 2.63 mA. -c) 3.02 mA. -d) 3.48 mA. -e) 4 mA. ===8=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 9.4 V voltage source is connected to two resistors in parallel. One is 2.1<math>k\Omega</math>, and the other is 4.3 <math>k\Omega</math>. What is the current through the larger resistor?} +a) 1.47 mA. -b) 1.69 mA. -c) 1.94 mA. -d) 2.23 mA. -e) 2.57 mA. ===9=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 3.6 V voltage source is connected to two resistors in parallel. One is 2.2<math>k\Omega</math>, and the other is 4.2 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.43 mA. -b) 0.49 mA. +c) 0.56 mA. -d) 0.65 mA. -e) 0.74 mA. ===10=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 8.9 V voltage source is connected to two resistors in parallel. One is 2.1<math>k\Omega</math>, and the other is 4.4 <math>k\Omega</math>. What is the current through the larger resistor?} +a) 1.37 mA. -b) 1.57 mA. -c) 1.81 mA. -d) 2.08 mA. -e) 2.39 mA. ===11=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 4.2 V voltage source is connected to two resistors in parallel. One is 1.6<math>k\Omega</math>, and the other is 2.1 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.75 mA. -b) 0.86 mA. -c) 0.99 mA. +d) 1.14 mA. -e) 1.31 mA. ===12=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 5.2 V voltage source is connected to two resistors in parallel. One is 1.2<math>k\Omega</math>, and the other is 3.6 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 0.94 mA. +b) 1.08 mA. -c) 1.25 mA. -d) 1.43 mA. -e) 1.65 mA. ===13=== {<!--a21CircuitsBioInstDC_circuits_1-->An ideal 8.8 V voltage source is connected to two resistors in parallel. One is 0.8<math>k\Omega</math>, and the other is 2.9 <math>k\Omega</math>. What is the current through the larger resistor?} -a) 1.56 mA. -b) 1.8 mA. -c) 2.07 mA. +d) 2.38 mA. -e) 2.74 mA.

a21CircuitsBioInstDC_circuits_v1

A 7.7 ohm resistor is connected in series to a pair of 5.8 ohm resistors that are in parallel. What is the net resistance?

	a) 6.1 ohms.
	b) 7 ohms.
	c) 8 ohms.
	d) 9.2 ohms.
	e) 10.6 ohms.

copies

===2=== {<!--a21CircuitsBioInstDC_circuits_2-->A 6 ohm resistor is connected in series to a pair of 5 ohm resistors that are in parallel. What is the net resistance?} -a) 7.4 ohms. +b) 8.5 ohms. -c) 9.8 ohms. -d) 11.2 ohms. -e) 12.9 ohms. ===3=== {<!--a21CircuitsBioInstDC_circuits_2-->A 8 ohm resistor is connected in series to a pair of 5.6 ohm resistors that are in parallel. What is the net resistance?} -a) 7.1 ohms. -b) 8.2 ohms. -c) 9.4 ohms. +d) 10.8 ohms. -e) 12.4 ohms. ===4=== {<!--a21CircuitsBioInstDC_circuits_2-->A 6.6 ohm resistor is connected in series to a pair of 6.4 ohm resistors that are in parallel. What is the net resistance?} -a) 6.4 ohms. -b) 7.4 ohms. -c) 8.5 ohms. +d) 9.8 ohms. -e) 11.3 ohms. ===5=== {<!--a21CircuitsBioInstDC_circuits_2-->A 5.9 ohm resistor is connected in series to a pair of 3 ohm resistors that are in parallel. What is the net resistance?} -a) 5.6 ohms. -b) 6.4 ohms. +c) 7.4 ohms. -d) 8.5 ohms. -e) 9.8 ohms. ===6=== {<!--a21CircuitsBioInstDC_circuits_2-->A 5.7 ohm resistor is connected in series to a pair of 3.8 ohm resistors that are in parallel. What is the net resistance?} -a) 5 ohms. -b) 5.7 ohms. -c) 6.6 ohms. +d) 7.6 ohms. -e) 8.7 ohms. ===7=== {<!--a21CircuitsBioInstDC_circuits_2-->A 6.4 ohm resistor is connected in series to a pair of 7.4 ohm resistors that are in parallel. What is the net resistance?} +a) 10.1 ohms. -b) 11.6 ohms. -c) 13.4 ohms. -d) 15.4 ohms. -e) 17.7 ohms. ===8=== {<!--a21CircuitsBioInstDC_circuits_2-->A 5.6 ohm resistor is connected in series to a pair of 7.2 ohm resistors that are in parallel. What is the net resistance?} -a) 7 ohms. -b) 8 ohms. +c) 9.2 ohms. -d) 10.6 ohms. -e) 12.2 ohms. ===9=== {<!--a21CircuitsBioInstDC_circuits_2-->A 8.1 ohm resistor is connected in series to a pair of 5.2 ohm resistors that are in parallel. What is the net resistance?} -a) 6.1 ohms. -b) 7 ohms. -c) 8.1 ohms. -d) 9.3 ohms. +e) 10.7 ohms. ===10=== {<!--a21CircuitsBioInstDC_circuits_2-->A 5.8 ohm resistor is connected in series to a pair of 2.8 ohm resistors that are in parallel. What is the net resistance?} +a) 7.2 ohms. -b) 8.3 ohms. -c) 9.5 ohms. -d) 11 ohms. -e) 12.6 ohms. ===11=== {<!--a21CircuitsBioInstDC_circuits_2-->A 7 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?} -a) 6.6 ohms. -b) 7.6 ohms. +c) 8.7 ohms. -d) 10 ohms. -e) 11.5 ohms. ===12=== {<!--a21CircuitsBioInstDC_circuits_2-->A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?} -a) 5.3 ohms. -b) 6 ohms. -c) 7 ohms. +d) 8 ohms. -e) 9.2 ohms. ===13=== {<!--a21CircuitsBioInstDC_circuits_2-->A 7.5 ohm resistor is connected in series to a pair of 7 ohm resistors that are in parallel. What is the net resistance?} -a) 8.3 ohms. -b) 9.6 ohms. +c) 11 ohms. -d) 12.7 ohms. -e) 14.5 ohms.

a21CircuitsBioInstDC_circuits_v1

Two 8 ohm resistors are connected in parallel. This combination is then connected in series to a 6.6 ohm resistor. What is the net resistance?

	a) 9.2 ohms.
	b) 10.6 ohms.
	c) 12.2 ohms.
	d) 14 ohms.
	e) 16.1 ohms.

copies

===2=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 8.8 ohm resistors are connected in parallel. This combination is then connected in series to a 2.8 ohm resistor. What is the net resistance?} -a) 6.3 ohms. +b) 7.2 ohms. -c) 8.3 ohms. -d) 9.5 ohms. -e) 11 ohms. ===3=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 6.2 ohm resistors are connected in parallel. This combination is then connected in series to a 2.4 ohm resistor. What is the net resistance?} -a) 3.1 ohms. -b) 3.6 ohms. -c) 4.2 ohms. -d) 4.8 ohms. +e) 5.5 ohms. ===4=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 6.6 ohm resistors are connected in parallel. This combination is then connected in series to a 3.4 ohm resistor. What is the net resistance?} -a) 4.4 ohms. -b) 5.1 ohms. -c) 5.8 ohms. +d) 6.7 ohms. -e) 7.7 ohms. ===5=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 6.2 ohm resistors are connected in parallel. This combination is then connected in series to a 2.6 ohm resistor. What is the net resistance?} -a) 3.7 ohms. -b) 4.3 ohms. -c) 5 ohms. +d) 5.7 ohms. -e) 6.6 ohms. ===6=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 6.4 ohm resistors are connected in parallel. This combination is then connected in series to a 6.6 ohm resistor. What is the net resistance?} -a) 8.5 ohms. +b) 9.8 ohms. -c) 11.3 ohms. -d) 13 ohms. -e) 14.9 ohms. ===7=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 8.2 ohm resistors are connected in parallel. This combination is then connected in series to a 5.8 ohm resistor. What is the net resistance?} +a) 9.9 ohms. -b) 11.4 ohms. -c) 13.1 ohms. -d) 15.1 ohms. -e) 17.3 ohms. ===8=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 6.2 ohm resistors are connected in parallel. This combination is then connected in series to a 3.4 ohm resistor. What is the net resistance?} +a) 6.5 ohms. -b) 7.5 ohms. -c) 8.6 ohms. -d) 9.9 ohms. -e) 11.4 ohms. ===9=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 7 ohm resistors are connected in parallel. This combination is then connected in series to a 2.8 ohm resistor. What is the net resistance?} -a) 5.5 ohms. +b) 6.3 ohms. -c) 7.2 ohms. -d) 8.3 ohms. -e) 9.6 ohms. ===10=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 9.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.4 ohm resistor. What is the net resistance?} -a) 5.4 ohms. -b) 6.2 ohms. +c) 7.1 ohms. -d) 8.2 ohms. -e) 9.4 ohms. ===11=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 7.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.8 ohm resistor. What is the net resistance?} -a) 5.7 ohms. +b) 6.5 ohms. -c) 7.5 ohms. -d) 8.6 ohms. -e) 9.9 ohms. ===12=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 8.2 ohm resistors are connected in parallel. This combination is then connected in series to a 5.8 ohm resistor. What is the net resistance?} +a) 9.9 ohms. -b) 11.4 ohms. -c) 13.1 ohms. -d) 15.1 ohms. -e) 17.3 ohms. ===13=== {<!--a21CircuitsBioInstDC_circuits_3-->Two 7.8 ohm resistors are connected in parallel. This combination is then connected in series to a 5.4 ohm resistor. What is the net resistance?} +a) 9.3 ohms. -b) 10.7 ohms. -c) 12.3 ohms. -d) 14.1 ohms. -e) 16.3 ohms.

a21CircuitsBioInstDC_circuits_v1

An ideal 7.9 volt battery is connected to a 0.09 ohm resistor. To measure the current an ammeter with a resistance of 20$m\Omega$ is used. What current does the ammeter actually read?

	a) 71.8 A.
	b) 82.6 A.
	c) 95 A.
	d) 109.2 A.
	e) 125.6 A.

copies

===2=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 6 volt battery is connected to a 0.073 ohm resistor. To measure the current an ammeter with a resistance of 14<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 60 A. +b) 69 A. -c) 79.3 A. -d) 91.2 A. -e) 104.9 A. ===3=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 7.5 volt battery is connected to a 0.06 ohm resistor. To measure the current an ammeter with a resistance of 19<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 54.3 A. -b) 62.4 A. -c) 71.8 A. -d) 82.6 A. +e) 94.9 A. ===4=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 7.3 volt battery is connected to a 0.071 ohm resistor. To measure the current an ammeter with a resistance of 27<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 49 A. -b) 56.3 A. -c) 64.8 A. +d) 74.5 A. -e) 85.7 A. ===5=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 6.4 volt battery is connected to a 0.071 ohm resistor. To measure the current an ammeter with a resistance of 21<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 60.5 A. +b) 69.6 A. -c) 80 A. -d) 92 A. -e) 105.8 A. ===6=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 6.8 volt battery is connected to a 0.096 ohm resistor. To measure the current an ammeter with a resistance of 29<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 35.8 A. -b) 41.1 A. -c) 47.3 A. +d) 54.4 A. -e) 62.6 A. ===7=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 6 volt battery is connected to a 0.06 ohm resistor. To measure the current an ammeter with a resistance of 25<math>m\Omega</math> is used. What current does the ammeter actually read?} +a) 70.6 A. -b) 81.2 A. -c) 93.4 A. -d) 107.4 A. -e) 123.5 A. ===8=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 7.5 volt battery is connected to a 0.084 ohm resistor. To measure the current an ammeter with a resistance of 14<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 43.8 A. -b) 50.3 A. -c) 57.9 A. -d) 66.5 A. +e) 76.5 A. ===9=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 7.4 volt battery is connected to a 0.074 ohm resistor. To measure the current an ammeter with a resistance of 12<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 49.2 A. -b) 56.6 A. -c) 65.1 A. -d) 74.8 A. +e) 86 A. ===10=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 5.9 volt battery is connected to a 0.059 ohm resistor. To measure the current an ammeter with a resistance of 24<math>m\Omega</math> is used. What current does the ammeter actually read?} +a) 71.1 A. -b) 81.7 A. -c) 94 A. -d) 108.1 A. -e) 124.3 A. ===11=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 7.8 volt battery is connected to a 0.064 ohm resistor. To measure the current an ammeter with a resistance of 17<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 63.3 A. -b) 72.8 A. -c) 83.7 A. +d) 96.3 A. -e) 110.7 A. ===12=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 5.7 volt battery is connected to a 0.091 ohm resistor. To measure the current an ammeter with a resistance of 23<math>m\Omega</math> is used. What current does the ammeter actually read?} +a) 50 A. -b) 57.5 A. -c) 66.1 A. -d) 76 A. -e) 87.5 A. ===13=== {<!--a21CircuitsBioInstDC_circuits_4-->An ideal 5.7 volt battery is connected to a 0.054 ohm resistor. To measure the current an ammeter with a resistance of 13<math>m\Omega</math> is used. What current does the ammeter actually read?} -a) 64.3 A. -b) 74 A. +c) 85.1 A. -d) 97.8 A. -e) 112.5 A.

a21CircuitsBioInstDC_circuits_v1

A battery has an emf of 5.3 volts, and an internal resistance of 326 $k\Omega$. It is connected to a 3 $M\Omega$ resistor. What power is developed in the 3 $M\Omega$ resistor?

	a) 5.01 $\mu$W.
	b) 5.76 $\mu$W.
	c) 6.62 $\mu$W.
	d) 7.62 $\mu$W.
	e) 8.76 $\mu$W.

copies

===2=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 6.1 volts, and an internal resistance of 366 <math>k\Omega</math>. It is connected to a 3.6 <math>M\Omega</math> resistor. What power is developed in the 3.6 <math>M\Omega</math> resistor?} -a) 6.44 <math>\mu</math>W. -b) 7.41 <math>\mu</math>W. +c) 8.52 <math>\mu</math>W. -d) 9.79 <math>\mu</math>W. -e) 11.26 <math>\mu</math>W. ===3=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 6.5 volts, and an internal resistance of 446 <math>k\Omega</math>. It is connected to a 3.5 <math>M\Omega</math> resistor. What power is developed in the 3.5 <math>M\Omega</math> resistor?} -a) 8.26 <math>\mu</math>W. +b) 9.5 <math>\mu</math>W. -c) 10.92 <math>\mu</math>W. -d) 12.56 <math>\mu</math>W. -e) 14.44 <math>\mu</math>W. ===4=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 5.6 volts, and an internal resistance of 295 <math>k\Omega</math>. It is connected to a 4.1 <math>M\Omega</math> resistor. What power is developed in the 4.1 <math>M\Omega</math> resistor?} -a) 3.81 <math>\mu</math>W. -b) 4.38 <math>\mu</math>W. -c) 5.03 <math>\mu</math>W. -d) 5.79 <math>\mu</math>W. +e) 6.66 <math>\mu</math>W. ===5=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 5.3 volts, and an internal resistance of 428 <math>k\Omega</math>. It is connected to a 2.3 <math>M\Omega</math> resistor. What power is developed in the 2.3 <math>M\Omega</math> resistor?} -a) 4.96 <math>\mu</math>W. -b) 5.71 <math>\mu</math>W. -c) 6.56 <math>\mu</math>W. -d) 7.55 <math>\mu</math>W. +e) 8.68 <math>\mu</math>W. ===6=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 5.5 volts, and an internal resistance of 296 <math>k\Omega</math>. It is connected to a 3.3 <math>M\Omega</math> resistor. What power is developed in the 3.3 <math>M\Omega</math> resistor?} +a) 7.72 <math>\mu</math>W. -b) 8.88 <math>\mu</math>W. -c) 10.21 <math>\mu</math>W. -d) 11.74 <math>\mu</math>W. -e) 13.5 <math>\mu</math>W. ===7=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 7.8 volts, and an internal resistance of 351 <math>k\Omega</math>. It is connected to a 4.2 <math>M\Omega</math> resistor. What power is developed in the 4.2 <math>M\Omega</math> resistor?} +a) 12.34 <math>\mu</math>W. -b) 14.19 <math>\mu</math>W. -c) 16.32 <math>\mu</math>W. -d) 18.76 <math>\mu</math>W. -e) 21.58 <math>\mu</math>W. ===8=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 5.6 volts, and an internal resistance of 450 <math>k\Omega</math>. It is connected to a 2.7 <math>M\Omega</math> resistor. What power is developed in the 2.7 <math>M\Omega</math> resistor?} -a) 4.88 <math>\mu</math>W. -b) 5.61 <math>\mu</math>W. -c) 6.45 <math>\mu</math>W. -d) 7.42 <math>\mu</math>W. +e) 8.53 <math>\mu</math>W. ===9=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 6.7 volts, and an internal resistance of 348 <math>k\Omega</math>. It is connected to a 3.8 <math>M\Omega</math> resistor. What power is developed in the 3.8 <math>M\Omega</math> resistor?} +a) 9.91 <math>\mu</math>W. -b) 11.4 <math>\mu</math>W. -c) 13.11 <math>\mu</math>W. -d) 15.08 <math>\mu</math>W. -e) 17.34 <math>\mu</math>W. ===10=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 7.1 volts, and an internal resistance of 246 <math>k\Omega</math>. It is connected to a 3.3 <math>M\Omega</math> resistor. What power is developed in the 3.3 <math>M\Omega</math> resistor?} -a) 10 <math>\mu</math>W. -b) 11.5 <math>\mu</math>W. +c) 13.23 <math>\mu</math>W. -d) 15.21 <math>\mu</math>W. -e) 17.5 <math>\mu</math>W. ===11=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 5.6 volts, and an internal resistance of 460 <math>k\Omega</math>. It is connected to a 2.4 <math>M\Omega</math> resistor. What power is developed in the 2.4 <math>M\Omega</math> resistor?} -a) 6.05 <math>\mu</math>W. -b) 6.96 <math>\mu</math>W. -c) 8 <math>\mu</math>W. +d) 9.2 <math>\mu</math>W. -e) 10.58 <math>\mu</math>W. ===12=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 7 volts, and an internal resistance of 357 <math>k\Omega</math>. It is connected to a 2.9 <math>M\Omega</math> resistor. What power is developed in the 2.9 <math>M\Omega</math> resistor?} +a) 13.4 <math>\mu</math>W. -b) 15.4 <math>\mu</math>W. -c) 17.72 <math>\mu</math>W. -d) 20.37 <math>\mu</math>W. -e) 23.43 <math>\mu</math>W. ===13=== {<!--a21CircuitsBioInstDC_circuits_5-->A battery has an emf of 6.5 volts, and an internal resistance of 244 <math>k\Omega</math>. It is connected to a 4 <math>M\Omega</math> resistor. What power is developed in the 4 <math>M\Omega</math> resistor?} -a) 7.09 <math>\mu</math>W. -b) 8.16 <math>\mu</math>W. +c) 9.38 <math>\mu</math>W. -d) 10.79 <math>\mu</math>W. -e) 12.41 <math>\mu</math>W.