Physics
What is an electromagnet?
Magnetism
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Answer
An electromagnet is a temporary strong magnet made from a piece of soft iron when current flows in the coil wound around it. It is an artificial magnet.
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Related Questions
Name one device that uses an electromagnet.
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State two ways through which the strength of an electromagnet can be increased.
Figure shows a coil wound around a soft iron bar XY. (a) State the polarity at the end X and Y as the switch is pressed. (b) Suggest one way of increasing the strength of the electromagnet so formed.
