The magnetic moment of a magnet of mass `75 gm` is `9xx10^(-7) A-m^(2)`. If the density of the material of magnet is `7.5xx10^(3) kg m^(-3)`, then find intensity of magnetisation is

Explanation

`I=(M)/(V)` Where volume, `V=( "mass"(m))/("density"(rho))`
`=(Mxxrho)/(m)=(9xx10^(-7)xx7.5xx10^(3))/(75xx10^(-3))=0.09A//m`