Electromagnetic Materials: Properties and Applications

An electromagnet is a type of magnet in which electric current produces a magnetic field. The electromagnets are used in electrical devices such as motors, generators, electrochemical solenoids, relays, and MRI machines. A solenoid is an electromechanical device that generates a mechanical motion when electric current is passed through it. The principle of solenoid is used in a device called as a relay to open and close light-current electrical circuits. Electromagnetic materials have a wid...