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AP Physics 2
11.8 Resistor-Capacitor (RC) Circuits
AdvancedMCQProportional AnalysisConceptual16.4k
A circuit diagram showing an ideal battery with emf epsilon at the left. A switch S is in the top wire. After the switch, resistor R1 is in series. Following R1, the circuit splits into two parallel branches: the top branch contains resistor R2 and the bottom branch contains a capacitor C. The branches then recombine and return to the negative terminal of the battery.
A compound RC circuit with resistors in series and parallel.
A circuit consists of an ideal battery with emf \(\mathcal{E}\), a switch \(S\), and two resistors, \(R_1\) and \(R_2\). Resistor \(R_1\) is connected in series with a parallel combination of resistor \(R_2\) and an initially uncharged capacitor \(C\), as shown in the diagram. The switch \(S\) is closed at time \(t = 0\). Which of the following correctly describes the potential difference across resistor \(R_1\), denoted \(V_1\), and the potential difference across the capacitor, denoted \(V_C\), at the instant the switch is closed and after the switch has been closed for a very long time?

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