Magnetic induction produced at the center of a circular loop carrying current is B. The magnetic moment of the loop of radius R is
(where,
permeability of free space)
Text Solution
Verified by ExpertsThe correct answer is:
B
Magnetic moment,
M 
= I
A … (i)
Magnetic induction at the centre of circular loop,
… (ii)
Here,
… (iii)
Substituting Eqs. (ii) and (iii) in Eq. (i), we get

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