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

## a21CircuitsBioInstDC_circuits_v1

An ideal 5.2 V voltage source is connected to two resistors in parallel. One is 1.2${\displaystyle k\Omega }$, and the other is 2.8 ${\displaystyle k\Omega }$. 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$k\Omega$, and the other is 4.2 $k\Omega$.  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$k\Omega$, and the other is 2.2 $k\Omega$.  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$k\Omega$, and the other is 5.2 $k\Omega$.  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$k\Omega$, and the other is 4.3 $k\Omega$.  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$k\Omega$, and the other is 1.8 $k\Omega$.  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$k\Omega$, and the other is 2.4 $k\Omega$.  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$k\Omega$, and the other is 4.3 $k\Omega$.  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$k\Omega$, and the other is 4.2 $k\Omega$.  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$k\Omega$, and the other is 4.4 $k\Omega$.  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$k\Omega$, and the other is 2.1 $k\Omega$.  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$k\Omega$, and the other is 3.6 $k\Omega$.  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$k\Omega$, and the other is 2.9 $k\Omega$.  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${\displaystyle m\Omega }$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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$m\Omega$ 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 ${\displaystyle k\Omega }$. It is connected to a 3 ${\displaystyle M\Omega }$ resistor. What power is developed in the 3 ${\displaystyle M\Omega }$ resistor?

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

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