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When 100 V DC is applied across a soleno...

When `100 V` DC is applied across a solenoid, a current of `1.0 A` flows in it. When `100 V` AC is applied across the same coil. The current drops to `0.5A`. If the frequency of the ac source is `50 Hz`, the impedance and inductance of the solenoid are

A

200Omega and 0.55H

B

100Omega and 0.86H

C

200Omega and 1.0H

D

100Omega and 0.93H

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The correct Answer is:
A
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