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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

Magnetic flux passing through a coil is initially Wb. It reduces to 10% of its original value in t seconds. If the emf induced is 0.72 mV, then t (in second) is [MHTCET 2016]

Answer: (C)

Solution

Wb and

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Question ID VK-082244