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AP Physics C: E&M
13.6 Circuits with Capacitors and Inductors (LC Circuits)
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An ideal LC circuit consists of an inductor of inductance \(L\) and a capacitor of capacitance \(C\). At time \(t = 0\), the capacitor holds an initial charge \(Q_0\) and the current in the circuit is zero. The period of oscillation of the charge on the capacitor is \(T = 2\pi\sqrt{LC}\). Which of the following graphs best represents the electric energy \(U_E\) stored in the capacitor, the magnetic energy \(U_B\) stored in the inductor, and the total energy \(U_{\text{total}}\) of the circuit as functions of time \(t\) over the interval \(0 \le t \le T\)?

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