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 0.5 A. If the frequency of the ac source is 5o Hz, the impedance and inductance of the solenoid are

200 W and 0.55 H

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100 W and 0.86 H

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200 W and 1.0 H

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100 W and 0.93 H

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Solution

The correct option is A
200 W and 0.55 H

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When $100 v o l t D C$ is applied across a solenoid, a current of $1.0 a m p$ flows in it. When $100 v o l t A C$ is applied across the same coil, the current drops to $0.5 a m p .$ If the frequency of the AC source is $50 H z$ the impedance and inductance of the solenoid are:

Q. When a

100 V DC

is applied across a solenoid, a current of 1.0 A flows in it. When a

100 V AC

is applied across the same coil, the current drops to

0.5 A

. If the frequency of the

A C

source is

50 Hz

, the impedance and inductance of the solenoid are

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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 0.5 A. If the frequency of the ac source is 5o Hz, the impedance and inductance of the solenoid are

The correct option is A 200 W and 0.55 H

The correct option is A
200 W and 0.55 H