what is an electromagnet? draw a circuit diagram to show how a soft piece of iron can be transformed into electromagnet?
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An electromagnet is a magnet formed temporary due to magnetic field of a current is known as electromagnet
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Explanation:
We can temporarily magnetise a material like soft iron by producing a magnetic field that will lead to flow of current in a coil or a solenoid. On a soft iron piece an insulated copper wire is wrapped and when current is passed through the coil by using a battery and a key then iron piece behaves like a bar magnet till the current is passing through it.
This type of magnet is known as an electromagnet. The diagram showing electromagnet is shown below in the diagram.
Learn more about electromagnet:
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