1.
If a ferromagnetic material is heated upto Curie temperature, it becomes
A
Permanent magnet
B
Anti-ferromagnetic material
C
Diamagnetic material
D
Paramagnetic material
E
None of these
View Answer
Correct Answer: D — Paramagnetic material
Explanation:
When ferromagnetic material heated beyond curie temperature, turns into paramagnetic material, as the ferromagnetic domains become random. Curie temperature: Curie temperature is the temperature at which the magnetic properties of a material change. When the temperature is greater than the Curie temperature, ferromagnetic material becomes paramagnetic material.