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Magnetism And Matter

Question
CBSEENPH12040101
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Above Curie temperature

  • a ferromagnetic substance becomes paramagnetic

  • a paramagnetic substance becomes diamagnetic

  • a diamagnetic substance becomes paramagnetic

  • a paramagnetic substance becomes ferromagnetic

Solution

A.

a ferromagnetic substance becomes paramagnetic

Ferromagnetism decreases with rise in temperature. If we heat a ferromagnetic substance, then at a definite temperature the ferromagnetic property of the substance suddenly disappears and the substance becomes paramagnetic. The temperature above which a ferromagnetic substance becomes paramagnetic is called the Curie temperature of the substance.

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