A 2-μ F capacitor (1 μ F = 1 × 10 −6 F) is charged to 20 V and then connected across a 6-μ H inductor (1 μ H = 1 × 10 − 6 H), forming an LC circuit.
(a) Find the initial charge on the capacitor.
(b) At the time of connection, the initial current is zero. Assuming no resistance, find the amplitude, frequency, and phase of the current. Plot the graph of the current versus time. (Use equations (4.2) and (4.3) in Section 3.4.)
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