Question

Curie temperature is the temperature above which

• A. Paramagnetic material becomes ferromagnetic material
• B. Ferromagnetic material becomes diamgnetic material
• C. Ferromagnetic material becomes paramagnetic material
• D. Paramagnetic material becomes diamagnetic material

Answer 1

The correct option is C Ferromagnetic material becomes paramagnetic material

The Curie temperature($T_C$) is the temperature at which certain materials lose their permanent magnetic properties, to be replaced by induced magnetism, that is, they go from becoming ferromagnetic to paramagnetic.

Above curie temperature, ferromagnetic material behaves as paramegnetic material.