Question

The magnet used in a magnetic compass is:

• A. electromagnet
• B. permanent magnet
• C. temporary magnet
• D. none of the above

Answer 1

The correct option is B

permanent magnet

Explanation of correct option:

(b) permanent magnet

1. Magnetic needle is used in a compass for navigation.
2. Magnetic needle is made up of a natural permanent magnet.

Explanation of incorrect option:

(a) Electromagnet loses its magnetism as soon as the electric current is turned off so it cannot be used in a compass for navigation.

(c) Temporary magnets will lose their magnetism so these cannot be used in the compass for navigation.

Thus, the correct option is (b).