When a DC voltage of 200 V is applied to a coil of self inductance 
, a current of 1A flows through it. But by replacing DC source with AC source of 200V, the current in the coil is reduced to 0.5 A. Then, the frequency of AC supply is
Text Solution
Verified by ExpertsThe correct answer is:
D
Resistance of coil 
With AC source, 
or 
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