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SS3: PHYSICS - 1ST TERM

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Lesson 10, Topic 4
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Temporary & Permanent Magnet

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Temporary magnets are magnets that do not retain their magnetism for a long time once the source of magnetism is removed, the magnetism in the magnet also disappears. E.g. iron, mu-metal.

Permanent magnets are magnets that retain their magnetism for a long time after the magnetic force is removed. Such magnets are made from materials like steel, alicomax, ticonal, cobalt and nickel, because they do not lose their magnetism easily.

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