A) \[\frac{{{\mu }_{0}}}{4\pi }\sqrt{2}\,\frac{M}{{{d}^{3}}}\]
B) \[\frac{{{\mu }_{0}}}{4\pi }(\sqrt{3})\,\frac{M}{{{d}^{3}}}\]
C) \[\left( \frac{2{{\mu }_{0}}}{4\pi } \right)\,\frac{M}{{{d}^{3}}}\]
D) \[\frac{{{\mu }_{0}}}{4\pi }(\sqrt{5})\,\frac{M}{{{d}^{3}}}\]
Correct Answer: D
Solution :
\[=\,\,\,\,\sqrt{{{\left( \frac{2kM}{{{d}^{3}}} \right)}^{2}}+{{\left( \frac{kM}{{{d}^{3}}} \right)}^{2}}}=\frac{kM}{{{d}^{3}}}\,(\sqrt{5})\]You need to login to perform this action.
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