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A current of 2.2 A flows through a coil when connected 220 V DC. When 220 V 50 Hz AC is applied to the same coil, current is 1 A. What is inductance o
Question

A current of 2.2 A flows through a coil when connected 220 V DC. When 220 V 50 Hz AC is applied to the same coil, current is 1 A. What is inductance of coil?

A.

6.24 H

B.

62.4 mH

C.

0.624 H

D.

0.624 mH

Correct option is C


(1) When coil Connected to 220 V DC supply

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