MHT CET202123 Sep 2021Morning ShiftPhysicsMagnetic Effects of CurrentActual
A current ' I ' is flowing in a conductor of length ' L ' when it is bent in the form of a circular loop, its magnetic moment will be
Options
- AIL 4 ^2
- B4 IL ^2
- C4 IL ^2
- DIL ^2 4
Correct answer
D. IL ^2 4
Step-by-step solution
aligned & L =2 r & r = L 2 aligned Area of the loop, A = r ^2= L ^2 4 ^2 = L ^2 4 Magnetic moment, M = IA = IL ^2 4