A) \[\frac{\sqrt{3}{{\mu }_{0}}}{2\pi }\]
B) \[\frac{{{\mu }_{0}}}{\pi }\]
C) \[\frac{3{{\mu }_{0}}}{2\pi }\]
D) \[\frac{{{\mu }_{0}}}{2\pi }\]
Correct Answer: D
Solution :
Magnetic field at mid point O, \[\vec{B}={{\vec{B}}_{1}}+{{\vec{B}}_{2}}\] \[=\frac{{{\mu }_{0}}}{2\pi }\frac{{{I}_{1}}}{r}-\frac{{{\mu }_{0}}}{2\pi }\frac{{{I}_{2}}}{r}\] \[=\frac{{{\mu }_{0}}}{2\pi }\frac{(2.5-5)}{2.5}\] \[=\frac{{{\mu }_{0}}}{2\pi }\]You need to login to perform this action.
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