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SAT® Subject Test in Physics

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How Capacitance Affects Charging

SATPHY-1YXXC1

The circuit below shows a resistor, $R$, an initially uncharged capacitor, $C$, and a battery with a voltage $V$. The black graph for each of the following is the correct graph for the current through the resistor for some time after the switch is closed for the pictured circuit.

If the pictured capacitor was replaced by a capacitor with a larger capacitance, which of the blue graphs best represents the possible new current through the resistor for some time after the switch is closed?

A
B
C
D
E