Q. The magnetic dipole moment of a current loop is independent of
A) Magnetic field in which it is lying
B) Number of turns
C) Area of the loop
D) Current in the loop
Explanation
(a) Magnetic dipole moment of a current is given by
$M = NIA$
where $N =$ number of turns
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ I =$ current in a loop
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ A =$ area of the loop
From the above relation it is clear that magnetic dipole moment of a current loop is independent of the magnetic field in which it is lying.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.