What is an electromagnet? How can we increase the strength of an electromagnet?
[3 marks]

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Solution

Electromagnet is a type of magnet that behaves like a magnet when an electric current is passed through it. It is basically a coil of insulated wire wrapped around a magnetic substance(substances which get attracted to magnets), such as soft iron. [1 mark]

We can make an electromagnet stronger by doing these things: [2 marks]

Wrapping the coil around a piece of soft iron core.

Adding more turns to the coil.

Increasing the current flowing through the coil.

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What is an electromagnet? How can we increase the strength of an electromagnet? [3 marks]

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