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SAT® Subject Test in Physics

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Moderate

RC Circuit Beginning Current

SATPHY-5CQYTJ

The circuit pictured below shows a battery, a resistor, and an uncharged capacitor with labeled values of voltage, resistance, and capacitance. The circuit also includes a switch, which can be opened (as pictured) or closed.

What is the value of the current in the circuit at the instant the switch is closed?

A

$2.0\ A$

B

$8.0\ A$

C

$128\ A$

D

$4.0\ A$

E

No current flows ($0\ A$).