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← ScienceWhich risk increases when exceeding Curie temperature in transformers?
A)Core losses decrease linearly
B)Magnetostriction induced acoustic noise
C)Eddy current losses increase
D)Hysteresis core losses disappear✓
💡 Explanation
Exceeding the Curie temperature causes a loss of ferromagnetism, therefore hysteresis ceases because above this temperature, thermal energy disrupts the alignment of magnetic domains, rather than facilitating it. It therefore stops.
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