Description
[Wikipedia excerpt: ‘…A horseshoe magnet is a magnet made in the shape of a horseshoe or a U shape and has become the most widely recognized symbol for magnets. It was invented by William Sturgeon in 1825. This type of magnet can be either a permanent magnet or an electromagnet. The main advantage of a horseshoe magnet over other types of magnets is that the magnetic poles are close together creating a much stronger magnetic field.…’ ].
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Wikipedia info