A) \[M\]
B) \[\frac{2M}{\pi }\]
C) \[\frac{M}{\pi }\]
D) \[M\pi \]
Correct Answer: B
Solution :
On bending a rod it?s pole strength remains unchanged where as its magnetic moment changes. New magnetic moment \[{M}'=m(2R)=m\left( \frac{2L}{\pi } \right)=\frac{2M}{\pi }\]You need to login to perform this action.
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