If a magnet of pole strenth m is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be

A thin bar magnet of length 2 l and breadth 2 b pole strength m and magnetic moment M is divided into four equal parts with length and breadth of each part being half of original magnet. Then, the magnetic moment of each part is

A bar magnet of pole strength 10A-m is cut into two equal parts breathwise. The pole strength of each magnet is

A bar magnet of pole strength 10A-m is cut into two equal parts breathwise. The pole strength of each magnet is

A pole of length 1 m 80 cm is divided into two parts such that their lengths are in the ratio 5:7. Find the length of each part of the pole.

A bar magnet of magnetic moment M is cut into four parts of equal length. The magnetic moment of each part is