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Question
Electromagnets are made up of :
Options
steel
copper
soft iron
aluminium
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Solution
Electromagnets are made up of : soft iron
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RELATED QUESTIONS
Why is soft iron used as the core of the electromagnet in an electric bell?
You are required to make an electromagnet from a soft iron bar by using a cell, an insulated coil of copper wire and a switch.
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Show with the aid of a diagram how a wire is wound on a U-shaped piece of soft iron in order to make it an electromagnet. Complete the circuit diagram and label the poles of the electromagnet.
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Explain in detail the application of electromagnets.
Unlike magnetic poles ______ whereas like poles ______.
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Reason (R): Wires carrying current in opposite directions repel each other.
