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AP® Physics C: E & M

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Moderate

Determine EMF

APPHEM-T1CGOQ

A circuit contains a battery with a terminal voltage of $4\ volts$ and a four-ohm resistor.

If the internal resistance is two ohms, what is emf?

A

$4\ volts$

B

$5\ volts$

C

$6\ volts$

D

$7\ volts$

E

$8\ volts$