Electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil. Main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric currecnt in the winding. Electromagnets are employed in industry for picking up and moving heavy iron objects.

Load capacity of electromagnet is the force of the magnet with which it attracts ferrimagnetic materials.

Electromagnet successfully transfered load.

Electromagnet can not transfer load, magnetic field that entered current produces is not strong enough.