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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

A conductor 10 cm long remains suspended vertically below a long conductor carrying a at a distance of 5 cm. If the mass per unit length of the conductor is 0.2 g/cm, calculate the current in the conductor.

Answer: (B)

Solution

At equilibrium the weight per unit length equals the magnetic force per unit length: , with $λ

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Question ID VK-078553