A) \[\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}^{2}}}{b}\]
B) \[\frac{{{\mu }_{0}}}{2\pi }\frac{{{i}^{2}}}{{{b}^{2}}}\]
C) \[\frac{{{\mu }_{0}}}{2\pi }\frac{i}{b}\]
D) \[\frac{{{\mu }_{0}}}{2\pi }\frac{i}{{{b}^{2}}}\]
Correct Answer: A
Solution :
The magnitude of magnetic Held at any point on y due to current in\[X\]is given by \[B=\frac{\mu }{2\pi }\frac{i}{b}\] The force per unit length is \[F=i\,Bl\left( \frac{{{\mu }_{0}}}{2\pi }\frac{i}{b} \right)\]You need to login to perform this action.
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