Q. Two identical thin bar magnets each of length $l$ and pole strength $m$ are placed at right angle to each other with north pole of one touching south pole of the other. Magnetic moment of the system is
A) $ml$
B) $2ml$
C) $\sqrt{2}ml$
D) $\frac{1}{2}ml$
Explanation
(c) $M_{net} = \sqrt{2}M = \sqrt{2}ml$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.