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MHT CET Physics question

PhysicsAlternating CurrentMHT CET

When 100 V d.c. flows in a solenoid the current is 1.0 A when 100 V a.c. flows the current drops to 0.5 A if the frequency of a.c. be 50 Hz, then the inductance of the solenoid are

Answer: (A)

Solution

(d.c.) and (a.c.); so

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Question ID VK-081738