For a Magnetic Susceptibility?

The magnetic susceptibility of a material, commonly symbolized by χ_m, is equal to the ratio of the magnetization M within the material to the applied magnetic field strength H, or χ_m = M/H.

What causes magnetic susceptibility?

Susceptibility is caused by interactions of electrons and nuclei with the externally applied magnetic field. Nuclei and electrons each possess spin, a quantum mechanical property with no exact analogue in classical physics.

Which of the following magnetic susceptibility is negative?

Magnetic susceptibility is small and positive for paramagnetic materials. Magnetic susceptibility is small and negative for diamagnetic materials.