SHAM ACADEMY

  Magnetic Effect of Electric Current magnetic effect of electric current Magnet:- Magnet is substance which attracts iron, cobalt and nickel or iron like substance. Or        An object which is capable of producing magnetic field and attracting unlike poles and repelling like poles . Types of magnets:- There are following types of magnets- 1.     Permanent magnet -   These magnets do not lose their magnetic property once they are magnetized. 2.     Temporary magnet- Temporary magnets can be magnetized in the presence of a  magnetic field . When the magnetic field is removed, these materials lose their magnetic property. 3.     Electromagnet- Electromagnets consist of a coil of wire wrapped around the metal core made from iron. When this material is exposed to an electric current, the magnetic field is generated making the material behave like a magnet. Various shapes of magnets:- Various shapes of magnet available for use- 1.      Bar magnet