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AP Physics C: E&M
11.5 Compound Direct Current Circuits
11.4 Electric Power
11.2 Simple Circuits
IntermediateMCQMathematicalConceptual18.4k
Circuit diagram with battery, resistors, and switch.
Circuit diagram with battery, resistors, and switch.
In the circuit shown, an ideal battery of electromotive force \(\mathcal{E}\) is connected in series with resistor \(R_1\). Resistor \(R_1\) is in series with a parallel network consisting of resistor \(R_2\) in series with an open switch \(S\) in one branch and resistor \(R_3\) in the other branch, where \(R_1 = R_2 = R_3 = R\). Let \(P_0\) be the power dissipated in resistor \(R_1\) before switch \(S\) is closed, and let \(P_1\), \(P_2\), and \(P_3\) be the power dissipated in resistors \(R_1\), \(R_2\), and \(R_3\), respectively, after switch \(S\) is closed. Which of the following correctly ranks the powers \(P_0\), \(P_1\), \(P_2\), and \(P_3\)?

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