When a dc voltage of 100 V is applied to an inductor, a dc current of 5 A flows through it. When an ac voltage of 200 V peak value is connected to inductor, its inductive reactance is found to be 20…

Question

When a dc voltage of 100 V is applied to an inductor, a dc current of 5 A flows through it. When an ac voltage of 200 V peak value is connected to inductor, its inductive reactance is found to be 20 3 . The power dissipated in the circuit is ______ W.

Accepted Answer

Correct answer: 250. (250) For DC voltage R= VI= 1005=20 for AC voltage X_L=20 3 R=20 Z= X_L^2+R^2= 3 400+400=40 Power=i_ rms^2R = ( V_ rmsZ )^2 R= ( 200 240 )^2 20=250 W

$When a dc voltage of 100 V is applied to an inductor, a dc current of 5 A flows through it. When an ac voltage of 200 V peak value is connected to inductor, its inductive reactance is found to be 203 Ω . The power dissipated in the circuit is ______W .$

Solution

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