Paramagnetic substances are those substances that get weakly magnetized in the presence of an external magnetic field. In the presence of an external magnetic field, these substances tend to move from a region of a weak magnetic field to a region of strong magnetic field. In other terms we can say that these substances tend to get weakly attracted to a permanent magnet. In a paramagnetic material, the individual atoms possess a dipole moment, which when placed in a magnetic field, interact with one another, and get spontaneously aligned in a common direction, which results in its magnetization. Due to this, the magnetic susceptibility of paramagnetic substances is less.