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AP® Physics C: E & M

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Difficult

Power of an Inline Resistor in a Compound Circuit

APPHEM-P1LOJN

In the circuit above, $R_1 = 2R_3$ and $R_3 = 2R_2$. If the source voltage is $V_1$, find the power dissipated in $R_1$.

A

$$P=\frac{36V_1^2}{196R_2}$$

B

$$P=\frac{V_1^2}{R_1}$$

C

$$P=\frac{3V_1^2}{14R_2}$$

D

$$P=\frac{6V_1^2}{14R_2}$$

E

$$P=\frac{3V_1^2}{196R_2}$$