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← ScienceWhich consequence results when ferromagnetic shielding saturates around a high-voltage cable?
A)Increased eddy current heating occurs✓
B)Dielectric breakdown strength recovers
C)Cable impedance becomes purely resistive
D)Corona discharge proximity threshold lowers
💡 Explanation
Increased eddy current heating occurs because exceeding the saturation magnetization of the ferromagnetic shield induces a nonlinear response where additional external magnetic flux bypasses the shielding, therefore it dumps energy via eddy dissipation rather than maintaining effective shielding.
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