Q. Unit of magnetic moment is
A) $Ampere - metre\ ^{2}$
B) $Ampere\ –\ metre$
C) $Weber\ –\ metre^{2}$
D) $Weber/metre$
Explanation
$M =$Pole strength$\ \times$ length $= amp - metre\ \times metre\ = amp - {metre}^{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.