Electromagnet-ka
Cashar 9 / 9
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I can describe how to test the strength of an electromagnet.
Muuji qoraalka
When there is an electric current in a wire, there is a magnetic field around the wire.
An electromagnet is a magnet that can be turned on with an electric current, and turned off.
The magnetic field of an electromagnet is similar to the field around a bar magnet.
A soft iron core in an electromagnet becomes magnetised and adds to the strength of field when the electromagnet is on.
When there is an electric current in a coil of wire, the magnetic field around each loop adds to make a stronger field.
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