Question: A 18.0-F capacitor is placed across a 22.5-V battery for several seconds and is then connected across a 12.0-mH inductor that has no appreciable resistance.

A 18.0-µF capacitor is placed across a 22.5-V battery for several seconds and is then connected across a 12.0-mH inductor that has no appreciable resistance.
(a) After the capacitor and inductor are connected together, find the maximum current in the circuit. When the current is a maxintum, what is the charge on the capacitor?
(b) How long after the capacitor and inductor are connected together does it take for the capacitor to be completely discharged for the first time? For the second time?
(c) Sketch graphs of the charge on the capacitor plates and the current through the inductor as functions of time.

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