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When 100 V dc is applied across a coil, ...

When 100 V dc is applied across a coil, a current of 1A flows through it and when 100 V ac of 50 Hz is applied to the same coil, only 0.5 flows
The inductance of coil is

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When 100 V dc is applied across a coil, a current of 1A flows through it and when 100 V ac of 50 Hz is applied to the same coil, only 0.5 flows The resistance is

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SL ARORA-AC CIRCUITS AND ELECTRIC CIRCUITS-problem
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