A) \[A-{{m}^{2}}\]
B) A-m
C) \[A-{{m}^{3}}\]
D) \[kg-{{m}^{3}}\]
Correct Answer: A
Solution :
Magnetic moment\[(M)=NIA\] where \[N=\]number of turn, \[I=\]electron current, \[A=\]area of cross-section of the coil \[\therefore \] Unit of magnetic moment\[=A-{{m}^{2}}\]
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