A) \[NiA\]
B) \[\frac{Ni}{A}\]
C) \[\frac{Ni}{\sqrt{A}}\]
D) \[{{N}^{2}}Ai\]
Correct Answer: A
Solution :
[a] If there are N turns in a coil, i is the current flowing and A is the area of the coil then magnetic dipole moment or simply magnetic moment of the coil is \[M=NiA\].
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