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Curie temperature is the temperature abo...

Curie temperature is the temperature above which

A

a ferromagnetic substance becomes paramagnetic

B

a ferromagnetic substance becomes diamagnetic

C

a ferromagnetic substance becomes paramagnetic

D

a ferromagnetic substance becomes ferromagnetic

Text Solution

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The correct Answer is:
A
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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