Question

Curie point is a temperature at which:
1. Matter becomes radio active
2. A magnetic material undergo a sharp change in their magnetic properties
3. A metal loses conductivity
4. Transmutation of metal occurs

Answer 1

Correct Answer - Option 2 : A magnetic material undergo a sharp change in their magnetic properties

The correct answer is A magnetic material undergo a sharp change in their magnetic properties.

• Curie point is also called curie temperature, the temperature at which certain magnetic materials undergo a sharp change in their magnetic properties.
• The temperature above which a ferromagnetic material behaves like a paramagnetic material is defined as curie temperature.
• At low temperature, the magnetic dipoles are aligned and above the curie point, random thermal motion dipole out of alignment.