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Which risk increases when applied magnetic fields exceed a ferromagnetic core's anisotropy limit?

A)Increased hysteresis loop energy loss
B)Enhanced domain wall pinning strength
C)Suppressed Barkhausen noise amplitude
D)Elevated Curie temperature transition

💡 Explanation

Increased magnetic fields exceeding the anisotropy limit induce irreversible domain rotation, because the domain walls suddenly move due to the coercivity mechanism overcoming energy loss. Therefore, hysteresis loop energy loss increases, rather than the other temperature values or effects, under this limit.

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