Question

Explain Curie's law for a paramagnetic substance.

Answer 1

Curie law states that magnetization of paramagnetic substance is directly proportional to the external magnetic field applied. But as the substance is heated, it's magnetization is inversely proportional to the temperature of substance.
Thus magnetization of paramagnetic substance $M=\frac{CB}{T}$
where $C$ is curie constant, $B$ is external magnetic field and $T$ is the temperature of substance.