Moving Charges and Magnetism

Question: Due to the flow of current in a circular loop of radius R, the magnetic induction produced at the centre of the loop is B. The magnetic moment of the loop is ($({\mu _0} = {\rm{permeability}}\,{\rm{constant)}}$)

1) $B{R^3}/2\pi {\mu _0}$

2) $2\pi B{R^3}/{\mu _0}$

3) $B{R^2}/2\pi {\mu _0}$

4) $2\pi B{R^2}/{\mu _0}$

Solution:

Explanation: No Explanation

Force and Torque on a Current Carrying Conductor

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