Question

What is an electro magnet. Give an example of making electro magnet

Answer 1

Iron that can be converted into magnet via electricity is called electromaget

u can make it by
1.Take an iron nail and wind a bare copper wire on that
2.pass electricity on that and the iron nail will be a electromagnet till electricity is passing in it

Answer 2

An electro magnet is a magnet consisting of a coil of insulated wire wrapped around a piece of iron that is magnetised only when electric current is passed through the coil.

. The magnetism of an electro magnet remains as long as the current is flowing in its coil

. Tbe magnetic effect is increased if we use a long coil of wire instead of a straight wire.

. The magnetic effect is even further increase if the coil of wire is wound an iron rod and then current is passed through it