Question

Which of the following substances magnetic susceptibility $X_m$ is negative?

• A. Diamagnetic
• B. Paramagnetic
• C. Ferromagnetic
• D. All of these

Answer 1

The correct option is A Diamagnetic

Magnetic susceptibility is the degree of magnetization of material in response to applied magnetic field.

Thus $M=\chi H$

In case of diamagnetic materials, the magnetic field in the material is weakened by the induced magnetization.

Thus, the magnetic susceptibility of diamagnetic materials is negative.