A bar magnet made of steel has magnetic moment of `2.5 Am^2` and a mass of `6.6 xx 10^-3 kg`.If the density of steel is `7.9 xx 10^3 (kg)/m^3`, find the intensity of magnetisation of the magnet.

A bar magnet of magnetic moment 10 Am^ 2 has a cross sectional area of 2.5 xx1O^-4 m^2 .If the intensity rof magnetisation of the magnet is 10^6 Am^-1 , the length of the magnet is

Solve the following example : The density of a metal is 1.8 xx 10^3 kg//m^3 . Find the relative density of the metal.

Find the density of steel if its relative density is 8 and the density of water is 10^3 kg//m^3

A magnetic needle placed in uniform magnetic field has magnetic moment of 2xx10^-2 Am^2 , and moment of inertia of 7.2xx10^7 kgm^2 . It performs 10 complete oscillations in 6s. What is the magnitude of the magnetic field?

The magnetic susceptibility of a paramagnetic substance is 3 xx10^-4 . It is placed in a magnetising field of 4 xx 10^4 amp/m . The intensity of magnetisation will be

A short bar magnet has a magnetic moment of 2A -m^2 . If its geometric length is 6cm, calculate its pole strength.

. A short bar magnet has a magnetic moment of 2A -m^2 . If its magnetic length is 5cm, calculate its pole strength?