Question

A bar magnet of length I and magnetic dipole moment M is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be

• A. M
• B. $\frac{3}{\pi}$ M
• C. $\frac{2}{\pi}$ M
• D. $\frac{M}{2}$

Answer 1

Answer: (B)

$\frac{3}{\pi}$ M

Answer 2

The correct option is (B): $\frac{3}{\pi}$ M