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MHT CET Physics question

PhysicsAlternating CurrentMHT CET

The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux , where is in webers, t is time in seconds and is a constant, the output voltage across the secondary coil is

Answer: (B)

Solution

Taking V as the primary e.m.f., , so

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Question ID VK-082080