A wire of length L metre carrying a current of I ampere is bent in the form of a circle. Its magnitude of magnetic moment will be
As we learnt in
Magnetic moment (M) -
M=NiA
- wherein
N-number of turns in the coil
i-current throughout the coil
A-area of the coil
Magnetic moment
Option 1)
incorrect
Option 2)
correct
Option 3)
incorrect
Option 4)
incorrect