Question

1.Electro magnet is temporary.why?
2.electromagnet is better than permanent magnet.why?
those who give correct answer I will mark it as brainliest.

Answer 1

The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage. You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet.

The strength of Permanent Magnetdepends on the material used for its creation, on the other hand, the strength of Electromagnet varies according to the flow of electric current into it.