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Q.
When a ferromagnetic material is heated to temperature above its curie point, the material
JamiaJamia 2006
Solution:
Key Idea: Ferromagnetism decreases with rise in temperature. Ferromagnetic substances are strongly attracted by a magnet, show all properties of a paramagnetic substance to a much higher degree. While paramagnetic substances are feebly attracted by a magnet. When ferromagnetic substance is heated, 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 (point) of the substance.