A) \[\frac{\sqrt{3}{{\mu }_{0}}}{2\pi }\]
B) \[\frac{{{\mu }_{0}}}{\pi }\]
C) \[\frac{3{{\mu }_{0}}}{2\pi }\]
D) \[\frac{{{\mu }_{0}}}{2\pi }\]
E) (e) \[\frac{\sqrt{3}{{\mu }_{0}}}{\pi }\]
Correct Answer: D
Solution :
In the following figure magnetic field at mid point M is given by \[{{B}_{net}}={{B}_{Q}}-{{B}_{P}}\] \[=\frac{{{\mu }_{0}}}{4\pi }\cdot \frac{2}{r}({{i}_{Q}}-{{i}_{P}})\] \[=\frac{{{\mu }_{0}}}{4\pi }\times \frac{2}{2.5}(5-2.5)=\frac{{{\mu }_{0}}}{2\pi }\]You need to login to perform this action.
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