Question

how does an Electromagnet differ from a permanent magnet

Answer 1

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.

An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it. Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.

Answer 2

Hey mate here is your answer A electromagnet works till electricity is passed through it after the path of electricity is cut the current stops flowing and it no longer functions as a magnet.

While

in a permanent magnet no electric charge is req. it works simply.
Hope it will help you
Thanx mate