The magnetic moment of magnet of mass 75 gm is 9 × 10^(-7) A-m^2. If the density of the material of magnet is…

Q: The magnetic moment of magnet of mass 75 gm is 9 × 10-7 A-m2 . If the density of the material of magnet is 7.5 × 103 kg m-3 , then find intensity of magnetisation .

Sol: I = M/V Where Volume, V = (mass(m))/(density(p))

$\large I = \frac{M \times \rho}{m} $

$\large I = \frac{9 \times 10^{-7} \times 7.5 \times 10^3}{75 \times 10^{-3}} $

= 0.09 A/m.