A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis of the following physical quantities the one which remains unchanged is

Question

A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis of the following physical quantities the one which remains unchanged is (A) ,pole strength. (B) magnetic moment (C) intensity of magnetisation (D) moment of inertia

Tardigrade Admin · Accepted Answer

For each half pole strength m becomes half M=m× 2l becomes half and volume V=a× 2l also becomes half therefore, magnetic intensity remains constant.

Q. A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis of the following physical quantities the one which remains unchanged is

,pole strength.

magnetic moment

intensity of magnetisation

moment of inertia

For each half pole strength $m$ becomes half
$M = m \times 2 l$ becomes half and volume $V = a \times 2 l$ also becomes half therefore, magnetic intensity remains constant.

Q. A bar magnet is cut into two equal halves by a plane parallel to the magnetic axis of the following physical quantities the one which remains unchanged is

,pole strength.

magnetic moment

intensity of magnetisation

moment of inertia

For each half pole strength m becomes half M=m×2l becomes half and volume V=a×2l also becomes half therefore, magnetic intensity remains constant.

For each half pole strength $m$ becomes half
$M = m \times 2 l$ becomes half and volume $V = a \times 2 l$ also becomes half therefore, magnetic intensity remains constant.