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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

There are 50 turns of a wire in every cm length of a long solenoid. If 4 A current is flowing in the solenoid. The approximate value of magnetic field along its axis at an internal point and at end point will be respectively

Answer: (C)

Solution

; inside, T and at the end

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Question ID VK-078805