Question

A wire of length L metre carrying a current I ampere is bent in the form of a circle. Its magnitude of magnetic moment will be-

• A. $\frac { \mathrm { IL } } { 4 \pi }$
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

L = 2pr and r = M = IA = I(pr²) = Ip =