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AP Physics C: E&M
11.8 Resistor Capacitor (RC) Circuits
11.1 Electric Current
IntermediateMCQConceptual14k
A circuit diagram drawn in black lines on a white background. On the far left, a vertical branch contains a DC voltage source labeled V. A horizontal wire extends to the right from the top terminal and splits into two parallel horizontal paths. The upper horizontal path contains a circle with the letter A inside, connected in series with two parallel vertical line segments representing a capacitor labeled C. Two wire leads branch from either side of the capacitor to a circle with the letter V inside, positioned above the capacitor. The lower horizontal path contains a zigzag symbol representing a resistor labeled R_1. The two paths rejoin at a node on the right, which connects to a second resistor labeled R_2 before returning via a horizontal wire to the bottom terminal of the voltage source. No other labels, lines, text, or axes appear.
Circuit schematic with a capacitor, ammeter, and voltmeter in steady state.
A direct-current circuit containing an ideal battery, fixed resistors, and an ideal parallel-plate capacitor has been connected for a long time. A voltmeter connected across the terminals of the capacitor indicates a steady, nonzero potential difference, while an ammeter connected in series with the capacitor reads zero. Which of the following provides the correct physical explanation for this observation?

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