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koban [17]
3 years ago
3

A bar magnet is a permanent magnet, while an electromagnet is a temporary magnet. Why is an electromagnet temporary?

Biology
2 answers:
vaieri [72.5K]3 years ago
7 0
An electromagnet is only temporary because electromagnets do not work without electricity running to it.
Bar magnets are permanent because of the magnetic field that Earth has.
yaroslaw [1]3 years ago
4 0

Answer:

The magnetic field of electromagnets depend on current

Explanation:

An electromagnet is a temporary magnet because it do no have any inbuilt source of magnetism. The electricity flowing through it produces magnetic force  and as soon as this electric force is removed , the magnetic force also vanishes.

Thus, the magnetic field of electromagnet depends on the potential for an electric field.

Wherever there is electricity, there is a magnetic field, and wherever there is magnetism, there is potential for an electric field.

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