An electromagnet has its magnetic field produced by an electric current. A simple electromagnet is made from a coil of wire which often is wrapped around a core of ferromagnetic materials like iron.
This means that the magnet only has its properties when an electric current is applied, and you can turn off the magnetic force. This means it is easier to manipulate the use of an electromagnet by controlling the amount of electric current supplied to it.
The application and utilization of magnets depend on which properties it consists of, so you need to find a magnet that matches your needs.
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Answer:
An 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 center of the coil. The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.
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