4. Does a magnet lose its magnetic property after being used?
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Yes, it is possible for a permanent magnet to lose its magnetism. ... If you heat a magnet up a little bit, it will lose some of its magnetism, but on returning to room temperature [depending on how high it was heated, and on the shape of the magnet itself], full magnetism can be restored.....
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Explanation:
Corrosion: Disrupts the physical structure by forcing magnetic domains apart and encouraging them to lose orientation. Elevated temperature: Magnetic materials lose magnetism as they heat, but they regain magnetism when cooled provided the maximum temperature is below their Curie temperature.
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