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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

A metal wire of area of cross-section and specific resistance is bent into a square loop and magnetic field of induction . What should be the speed of the loop so that a current of 3 mA passes through it

Answer: (C)

Solution

Taking emf in one side of the loop and resistance for a length l of wire, $v=ρ

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Question ID VK-081501