Question

Which of the following ways will cause the magnet to lose its magnetic properties?

• A. Touching it to an iron piece
• B. Covering it with a layer of oil
• C. Heating it for a long time
• D. Touching it to a wood piece

Answer 1

The correct option is C Heating it for a long time

Heating a magnet results in decreasing the magnetic properties for a material. If we heat any material for a long time it may lose all its magnetic properties and act like a non-magnetic material.