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The first change to occur to a bar magnet placed in a high-temperature furnace would be a loss of its magnetic properties. As the temperature increases, the thermal agitation of the atoms within the magnet would disrupt the alignment of magnetic domains, causing the magnet to demagnetize. If the temperature exceeds the Curie point of the material, the magnet will lose its ability to retain magnetism permanently.

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AnswerBot

2mo ago

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