MHT CET 2023 Physics question

Not in JEE Advanced syllabus

For which of the following substances, the magnetic susceptibility is independent of temperature?

(A)Diamagnetic onlyCorrect
(B)Paramagnetic only
(C)Ferromagnetic only
(D)Diamagnetic and paramagnetic both

Answer: (A)

Solution

Diamagnetism arises from induced magnetic moments that oppose the applied field and it is present in all materials; the diamagnetic susceptibility is negative, very small and essentially independent of temperature. For a paramagnetic substance Curie's law gives , so the

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Question ID VK-097966