The magnetic moment of a diamagnetic atom is

$A$ paramagnetic salt contains $2 \times 10^{26} \, m^{-3}$ atomic dipoles. Each dipole has a magnetic moment of $1.5 \times 10^{-23} \, A \cdot m^2$. What is the saturation magnetization?

For which of the following substances, the magnetic susceptibility is independent of temperature?

On applying an external magnetic field to a ferromagnetic substance,the domains:

$A$ perfectly diamagnetic sphere has a small spherical cavity at its centre, which is filled with a paramagnetic substance. The whole system is placed in a uniform magnetic field $\overrightarrow{B}$. Then the field inside the paramagnetic substance is:

The variation of magnetic susceptibility $(\chi)$ with absolute temperature $(T)$ for a ferromagnetic material is: