Question

mention two advantage of an electromagnet or permanent magnet what types of magnet is used in an electric electric bell draw a labelled diagram of electric bell

Answer 1

Answer:

Permanent magnet advantages :The main advantage of a permanent magnet over an electromagnet is that a permanent magnet does not require a continuous supply of electrical energy to maintain its magnetic field.

Electromagnet advantage : The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding.