Question

What is an electromagnet ? Name any four appliances working on electromagnetism ?


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Answer 1

Explanation:

The magnetic field disappears when the current is turned off. ... Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment.

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Answer 2

Explanation:

Electromagnets usually consist of wire wound into a coil. ... Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment.

Examples of electromagnetic devices include doorbells and any devices that have electric motors, such as electric fans. The electromagnet in a doorbell attracts the clapper, which hits the bell and makes it ring. An electric motor is a device that uses an electromagnet to change electrical energy to kinetic energy.

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