A) \[\frac{{{\mu }_{0}}NI}{R}\]
B) \[\frac{{{\mu }_{0}}NI}{2R}\]
C) \[\frac{\sqrt{3}{{\mu }_{0}}NI}{2R}\]
D) \[\frac{\sqrt{5}\,{{\mu }_{0}}NI}{2R}\]
Correct Answer: D
Solution :
At centre, \[\overrightarrow{B}\,\,=\,\,{{\overrightarrow{B}}_{1}}\,\,+\,\,{{\overrightarrow{B}}_{2}}\] \[\left| B \right|\,\,=\,\sqrt{{{B}^{2}}_{1}+{{B}^{2}}_{2}}\,\,=\,\,\frac{{{\mu }_{0}}Ni}{2R}\,\,\sqrt{5}\,\]You need to login to perform this action.
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