what happens when a magnet is heated ?
A. coal
B.petrol
c. hydrogen
D. diesel
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If a magnet is exposed to high temperatures, the delicate balance between temperature and magnetic domains is destabilized. At around 80 °C, a magnet will lose its magnetism and it will become demagnetized permanently if exposed to this temperature for a period, or if heated above their Curie temperature
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coal is the right answer
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