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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

A coil of wire of radius r has 600 turns and a self-inductance of 108 mH. The self-inductance of a coil with same radius and 500 turns is

Answer: (B)

Solution

For the same radius , so mH; 80 mH

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Question ID VK-082176