Question

what is an electromagnet, how does electromagnet works, why does this happens...fast help me ​​

Answer 1

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Electromagnets usually consist of wire wound into a coil.

A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.

ex:

school bells work on this principle