Question

A magent which retains its magnetism for a long period time is called ​

Answer 1

Answer:

permanent magnet.

Explanation:

 A  magnet which retains magnetism for long period of time is called permanent magnet. these magnets are made up of aluminium, nickle, cobalt, etc. They can be formed by passing a huge amount of current through the above materials.

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Answer 2

Answer:

It is called permanent magnet.