A) is permanently magnetized
B) remains ferromagnetic
C) behaves like a diamagnetic material
D) behaves like a paramagnetic material
Correct Answer: D
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.
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