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Which constraint arises within a reactor's ferromagnetic shielding when Curie temperature is exceeded?

A)Shielding becomes parametrically anti-resonant
B)Shielding loses ferromagnetic properties
C)Shielding provides enhanced magnetoreception
D)Shielding material achieves superparamagnetism

💡 Explanation

Above the Curie temperature, thermal energy disrupts spin alignment; thus the *exchange interaction* can’t maintain parallel alignment. Therefore, shielding loses effectiveness, rather than resonance, because there’s no longer an inherent ordered magnetic moment.

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