Question

Curie temperature is the temperature above which –

• A. a ferromagnetic material becomes paramagnetic
• B. a ferromagnetic material becomes diamagnetic
• C. a paramagnetic material becomes diamagnetic
• D. a paramagnetic material becomes ferromagnetic

Hint:

Remember: Ferromagnets turn paramagnetic above the Curie temperature.

Answer 1

The Correct Option is A

Curie temperature is the critical point at which a ferromagnetic material loses its permanent magnetism and becomes paramagnetic.
This happens because thermal energy becomes large enough to overcome the magnetic ordering.
\[ \text{Above Curie temperature: } \text{Ferromagnetic} \rightarrow \text{Paramagnetic} \]