The disc magnet is preferred by many because of its versatility and applicability. The disc magnet is characterised by its height being less than its diameter. If the height is greater than the diameter, it is a rod magnet. The disc magnet is used for many purposes. It can be used as magnetic knife holder, blackboard magnet, holding curtain, collecting metal in feed truck and many other things. Disc magnets are available in alloys of nickel, copper, gold, teflon and rubber. Nickel is the most commonly used alloy. The magnetic north and south poles are always on the flat sides of the disc magnet.
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