A bar magnet of magnetic moment M is cut into two equal parts. The magnetic moment of either of the parts will be-
Answer & explanation
Correct answer: option 3
$M = ml$
For the new magnet
$M'= m\times \frac{l}{2} = \frac{M}{2}$
A bar magnet of magnetic moment M is cut into two equal parts. The magnetic moment of either of the parts will be-
Correct answer: option 3
$M = ml$
For the new magnet
$M'= m\times \frac{l}{2} = \frac{M}{2}$