Question

Difference between electromagnet and permanent magnet

Answer 1

Permanent Magnet

Electro Magnet

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. As the name suggests, a permanent magnet is 'permanent'. This means that it always has a magnetic field and will display a magnetic behavior at all times. The South – North polarity of a permanent magnet is fixed and they cannot be changed 3.Its strength cannot be changed or altered.

An electromagnet is a kind of magnet whose magnetic field is created by the flow of electric current The South – North polarity of a permanent magnet can be changed by changing the direction of the current in the coil.3. Its strength can be changed by changing the current in it or by changing the number of turns in it.