Question

What happens when a ferromagnetic material is heated above its Curie temperature?

• A. It becomes diamagnetic
• B. It becomes paramagnetic
• C. It loses its magnetic properties
• D. Its magnetic properties increase

Answer 1

Answer:

C. It loses its magnetic properties

When a ferromagnetic material is heated above its Curie temperature, it indeed loses its magnetic properties.

The Curie temperature is the critical temperature above which a ferromagnetic material becomes paramagnetic, meaning it no longer exhibits spontaneous magnetization.

At temperatures above the Curie point:

• The thermal energy overcomes the magnetic ordering.

• The magnetic dipoles become randomly aligned.

• The material loses its ferromagnetic properties.