Question

A magnet can be easily turned into a ______ by excessive heating. Fill in the blank.

• A. Electromagnet
• B. Permanent Magnet
• C. Temporary Magnet
• D. None

Answer 1

The correct option is D None

At around ${80}^{\circ }C$, a magnet will lose its magnetism and it will become demagnetized permanently if exposed to this temperature for a period, or if heated above their Curie temperature. Heat the magnet even more, and it will melt, and eventually vaporize.