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← ScienceWhich risk dramatically escalates when a ferromagnetic core transformer experiences DC magnetization?
A)Increased magnetostriction and audible noise✓
B)Decreasing eddy current losses substantially
C)Increased dielectric breakdown withstand strength
D)Greater reluctance without core saturation
💡 Explanation
Transformer saturation leads to increased magnetostriction because the domain alignment is near its maximum, therefore causing increased audible noise rather than decreased losses; saturation reduces the incremental permeability.
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