Question

What is an electromagnet ? What are its properties ​

Answer 1

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An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity.

The main properties of an Electromagnet are:

(i) An electromagnet is temporary in nature. (ii) An electromagnet is made of a soft iron core. (iii) The magnetic field strength can be changed. (iv) An electromagnet can be easily demagnetized by switching off the current.

Answer 2

Answer:

An electromagnet is a device that sends electricity through a coil of wire to produce a magnetic field. ... Electromagnets are used in millions of devices around the world, from hard disk drives and MRI machines, to motors and generators.