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SAT® Subject Test in Physics

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How Resistance Affects Charging

SATPHY-KELUEQ

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

A
B
C
D
E