1.

List three methods of producing magnetic fields.

Answer»

Solution :Three methods of producing magnetic field are as follows:
(i) Magnetic field can be produced by placing a permanent bar magnet or a HORSE shoe magnet at the place, where magnetic field is REQUIRED.
(ii) Magnetic field is produced AROUND a current-carrying straight conductor or a current-carrying circular coil.
(iii) A very good method to produce magnetic field is due to FLOW of current in a solenoid.


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