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AP® Physics C: E & M

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Difficult

Current Through a Resistor in a Parallel Branch

APPHEM-351$IN

A circuit is created with a source and four identical resistors of resistance $R$ and source voltage $V$ as shown above.

The current through $R_3$ is

A

$\cfrac{V}{5R}$

B

$\cfrac{2V}{5R}$

C

$\cfrac{3V}{5R}$

D

$\cfrac{4V}{5R}$

E

$\cfrac{V}{R}$