A charged capacitor is connected to an inductor at an instant of time t = 0. If the capacitor and the inductor are taken to be pure, write down the equation of effective potential difference across the combination at any instant of time t and solve it for instantaneous current through the combination. Explain briefly the exchange of electric and magnetic energy between the capacitor and the inductor.

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let the capacitor be C and charge be qvoltage across the capacitor V=qCcosωtω=1LCV=qCcostLCthe voltage across both remain same .i=CdVdt=-qsintLC.1LC=-qLCsintLCthe energy oscillate from elecric to magnetic this is known as LC oscillation .REgards  
 

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