Question

which substance are used for making electromagnet

Answer 1

Soft iron core is generally used.. and other ferromagnetic substances are used for making electromagnets.. which are easily magnetised and demagnetised

Answer 2

A simple electromagnet consisting of a coil of wire wrapped around an iron core.

A core of ferromagnetic material like iron serves to increase the magnetic field created. The strength of magnetic field generated is proportional to the amount of current through the winding.

Electromagnets are widely used as components of other electrical devices such as motors , generators , hard disks , loud speakers , relays etc.

hope it helps u ^_^