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Which risk increases when a transformer core is repeatedly exposed to high alternating magnetic fields?

A)Core hysteresis heating grows larger
B)Eddy current losses diminish quickly
C)Magnetic domain alignment improves greatly
D)The Curie temperature reduces sharply

💡 Explanation

Hysteresis losses increase because the repeated cycling of magnetization within the core via magnetic hysteresis generates increased heat. Therefore, hysteresis heating grows, rather than magnetic domain realignment improving, due to energy dissipation within the transformer core.

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