the method of magnetising a steel bar using a bar magnet
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A bar of steel or iron can be magnetised by placing it in a coil of wire (solenoid). Passing a d.c. (direct current) through the wire will magnetise the bar.
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Stroking method
A bar of steel can be magnetised by stroking it with a bar magnet. The domains become aligned, and a N pole and a S pole are induced.
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