Magnetic susceptibility of a paramagnetic substance is

Key Idea For paramagnetic substance, the magnetic susceptibility is small and positive, because they get feebly magnetised when placed in a magnetic field.
The magnetic susceptibility of a substance shows how easily a substance can be magnetised and given by ${\chi }_m=\frac{l}{H}$
Where, l = intensity of magnetisation,
and H = magnetic intensity of the field