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MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

A helium nucleus makes a full rotation in a circle of radius 0.8 metre in two seconds. The value of the magnetic field B at the centre of the circle will be [CPMT 1988, K CET 1998, UPSEAT 2001]

Answer: (B)

Solution

Equivalent current A, so \dfrac${μ_0

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Question ID VK-078750