Among which the magnetic susceptibility does not depend on the temperature? (a) diamagnetism (b) paramagnetism (c) ferromagnetism (d) ferrite.

Answer: (a). Diamagnetism comes from induced orbital moments that oppose the field. Thermal motion does not change these induced moments. Para- and ferromagnetism depend on aligning permanent dipoles, and thermal agitation disturbs that alignment, so their χ depends on T. So the answer is (a) diamagnetism.

Among which the magnetic susceptibility does not depend on the… | NEET 2001 (AIPMT)

Q45NEET 2001 · AIPMTEasy

Magnetic Materials & Curie Law

Among which the magnetic susceptibility does not depend on the temperature?

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Answer: (a)

Diamagnetism comes from induced orbital moments that oppose the field. Thermal motion does not change these induced moments.
Para- and ferromagnetism depend on aligning permanent dipoles, and thermal agitation disturbs that alignment, so their $\chi$ depends on $T$ .
So the answer is (a) diamagnetism.

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