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← ScienceWhich outcome occurs when a transformer operates far above rated frequency?
A)Core saturation induces high primary current✓
B)Dielectric breakdown increases insulation failure
C)Skin effect diminishes winding impedance
D)Ferrite core enhances magnetic field strength
💡 Explanation
Core saturation induces disproportionately high magnetizing current because the higher frequency reduces inductive reactance, so the core flux density increases sharply therefore leading to saturation, rather than dielectric breakdown that increases at high voltages.
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