1. A magnet prepared by passing an electric current through an insulated wire wound around a piece of soft iron is called an electromagnet.
2. IF the current is stopped, the electromagnet loses magnetism. Thus, the magnetism induced is temporary.
3. An electromagnet is used in a crane, an electric bell etc.
2. IF the current is stopped, the electromagnet loses magnetism. Thus, the magnetism induced is temporary.
3. An electromagnet is used in a crane, an electric bell etc.