Question

Permanent magnet is made of

• A. Steel
• B. soft iron
• C. steel and soft iron
• D. aluminium

Answer 1

The correct option is A

Steel

Explanation of correct answer:

1. A permanent magnet is an object made from material that can be magnetized and creates its own persistent magnetic field.
2. These materials are strongly attracted to magnets.
3. These are made up of iron, nickel, cobalt, steel and some alloys of rare-earth metals.

Explanation of incorrect answer:

1. Soft iron and aluminium will not make a permanent magnet as they can be magnetized only for a shorter period of time.
2. They lose magnetism very easily.

So, the correct answer is (A).