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Which consequence results when applying a large reverse magnetic field to a ferromagnetic core within a transformer?

A)Increased hysteresis losses result
B)Core saturation magnetization increases
C)Curie temperature is significantly lowered
D)Eddy current losses are minimized

💡 Explanation

Applying a large reverse magnetic field causes domain wall motion and realignment, increasing energy dissipated via hysteresis. This `domain wall movement` results in greater magnetic losses, because energy's used to overcome pinning sites; therefore, hysteresis losses increase rather than saturation increasing, which needs greater alignment without reversal.

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