Question

B Answer the following in not more than 40 words.
1. A permanent magnet becomes weak with time. What can be done to prevent this?​

Answer 1

Answer:

To prevent a permanent magnet become weaker with time follow the given steps -

1. A permanent magnet becomes weak with time. It can be protected by keeping a strip of magnetic material between its opposite poles. The strip used to store magnets is called keeper.

2. Or another permanent magnet can be rubbed against it so that the magnet aligns itself as per the other magnet and not get weaker.

Answer 2

Answer:

A permanent magnet becomes weak with time. It can be protected by keeping a strip of magnetic material between its opposite poles. The strip used to store magnets is called keeper.