A magnetic wire is bent at its midpoint at an angle of 60o. If the length of the wire is l and its magnetic moment is M then the magnetic moment of new shape of wire will be-
Answer & explanation
Correct answer: option 3
$ \text{Length of the wire become }lcos 60^o$
$ M = m lcos 60^o = \frac{ml}{2} = \frac{M}{2}$