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← ScienceWhich outcome occurs when exceeding the Curie temperature in neodymium magnets?
A)Loss of spontaneous magnetization occurs✓
B)Increased eddy current power losses
C)Mechanical hysteresis greatly increases
D)Greater alignment of magnetic domains
💡 Explanation
Exceeding the Curie temperature causes loss of magnetization because thermal energy overcomes exchange interactions, therefore, disordered spins prevent the magnet exhibiting ferromagnetism, rather than increasing domain alignment which reinforce ferromagnetism.
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