When a dc voltage of 60 V is applied across a solenoid, an electric cu – McqOptions

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1.	When a dc voltage of 60 V is applied across a solenoid, an electric current of 5 A flows through it. When the dc voltage is replaced by the ac voltage of the angular frequency 400 rad/s, the electric current is reduced to 3A. What is the inductance of solenoid?
A.	0.02 H
B.	0.4 H
C.	0.04 H
D.	0.2 H
Answer» D. 0.2 H

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