Q. Two magnets, each of magnetic moment ‘$M$’ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
A) 2 $M$
B) $\sqrt{2}\ M$
C) 0.5 $M$
D) $M$
Explanation
(b) $\Rightarrow M_{net} = \sqrt{M^{2} + M^{2}} = \sqrt{2}\ M$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.