Question

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. $\frac{1}{2}ml$

Answer 1

The correct option is C $\sqrt{2}ml$


$M_{net}=\sqrt{2}M=\sqrt{2}ml.$