Question

Which of the following is the surest test of magnetism:

• A. attraction
• B. repulsion
• C. breaking the magnet

Answer 1

The correct option is B

repulsion

1. Magnet: A substance that has the property of attracting iron, steel, cobalt and nickel.
2. We know that like poles repel each other and unlike poles attract each other.
3. So, all magnetic substances attract each other but they can also attract unmagnetized substances like iron.
4. But if a substance is non-magnetic, it will not repel other magnets.
5. Therefore, the surest test of magnetism is repulsion.

Hence, option (b) is correct.