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A capacitor of capacitance C is given charge Q and then connected in parallel to a coil of inductance L. There is no resistance in the circuit. When the charge on the capacitor becomes zero, the current in the coil will be(a) Q√L/C (b) Q/√LC (c) Q√C/L (d) zero |
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Answer» Correct Answer is: (b) Q/√LC The initial energy stored in the capacitor is Q2/2C. When this energy gets transferred to the coil, carrying current i, 1/2 Li2 = Q2/2C. |
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