A) \[{{\mu }_{0}}{{i}^{2}}/2\pi d\]
B) \[{{\mu }_{0}}{{i}^{2}}/4\pi d\]
C) \[{{\mu }_{0}}{{i}^{2}}/2\pi d\]
D) \[{{\mu }_{0}}i/4\pi d\]
E) \[{{\mu }_{0}}{{i}^{2}}/2\pi d\]
Correct Answer: A
Solution :
The force per unit length is \[\frac{F}{l}=\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}_{1}}{{i}_{2}}}{d}\] Given, \[{{i}_{1}}={{i}_{2}}=i\] \[\therefore \] \[\frac{F}{l}=\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}^{2}}}{d}\]You need to login to perform this action.
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