Q. In the circuits and switches and are closed at and are kept closed for a long time. The variation of currents in the two circuits for are roughly shown by (figures are schematic and not drawn to scale) : Physics Question Image

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Solution:

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In capacitor circuit at time capacitor behaves like zero resistance and the current is maximum i.e. in circuit, after infinite time the capacitor offers infinite resistance like and current in the circuit is zero. In inductive circuit at time inductor behaves like infinite resistance and the current is zero in circuit, after infinite time the capacitor behaves like zero resistance and current in the circuit is maximum i.e. .