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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

The magnetic flux linked with coil, in weber is given by the equation, . The induced e.m.f. in the coil in the fourth second is

Answer: (A)

Solution

, which equals 43 V at t = 4 s (and 38 V on average

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Question ID VK-082020