Question

Three magnetic materials are listed below:
(A) Paramagnetics
(B) Diamagnetics
(C) Ferromagnetics
Choose the correct order of the materials in increasing order of magnetic susceptibility.

• A. (A), (B), (C)
• B. (C), (A), (B)
• C. (B), (A), (C)
• D. (B), (C), (A)

Answer 1

The Correct Option is C

To order magnetic materials by ascending magnetic susceptibility, it is necessary to comprehend their characteristics. Magnetic susceptibility (\(\chi\)) measures the degree to which a material magnetizes under an applied magnetic field. The sequence of magnetic susceptibility for various magnetic material types is presented below:

• Diamagnetic materials exhibit a small, negative magnetic susceptibility, leading to weak repulsion from magnetic fields.
• Paramagnetic materials possess a small, positive magnetic susceptibility, resulting in weak attraction to magnetic fields.
• Ferromagnetic materials display very high, positive magnetic susceptibility, causing strong attraction to magnetic fields and the retention of magnetization post-field removal.

Consequently, the arrangement of magnetic materials in order of increasing magnetic susceptibility is: (B) Diamagnetics, (A) Paramagnetics, (C) Ferromagnetics

This aligns with the selection: (B), (A), (C)