The line along which a magnet rests indicates the north-south direction. You can find this direction by using a compass or observing a freely suspended magnet, which aligns itself with Earth’s magnetic field.
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Magnets are used in everyday items like refrigerator doors, compasses, and electronic devices such as speakers and hard drives.
To make an electromagnet, wrap a coil of insulated wire around a nail and pass an electric current through the wire.
In ancient times, travelers and sailors used a magnetic compass to determine direction. This instrument, utilizing a magnetized needle, aligns with Earth’s magnetic field to show the north-south direction, aiding navigation.