A) \[\frac{l{{L}^{2}}}{4\pi }\]
B) \[\frac{lL}{4\pi }\]
C) \[\frac{{{l}^{2}}L}{4\pi }\]
D) \[\frac{{{l}^{2}}{{L}^{2}}}{4\pi }\]
Correct Answer: A
Solution :
Let a wire length L is bend in a circular form of radius r. \[2\pi r=L\,\,\,\,\,\Rightarrow \,\,\,\,\,r=\frac{L}{2\pi }\,\,\]You need to login to perform this action.
You will be redirected in
3 sec