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MHT CET 2026 Physics question

PhysicsElectromagnetic InductionMHT CET 2026

The coefficient of mutual induction is 3H and induced e.m.f. across secondary is 4 kV. Current in primary is reduced from 7A to 2A. The time required for the change of current is

Answer: (A)

Solution

The e.m.f. induced in the secondary is . Here H, V and A. Hence \dfrac{M|Δ I|}{ε}\dfrac{3×5}{4000}$ =

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Question ID VK-098585