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← ScienceWhich outcome occurs from dielectric breakdown when a high voltage is applied across a capacitor?
A)Permanent decrease in device capacitance
B)Progressive reduction in energy storage
C)Sudden short circuit and current surge✓
D)Gradual increase in equivalent series resistance
💡 Explanation
When voltage exceeds dielectric strength, dielectric breakdown occurs as the insulating material ionizes, creating a conductive path because electrons are freed, leading to a rapid discharge. Therefore a short circuit results, rather than capacitance reduction, energy storage loss, or resistance increase, all requiring different degradation mechanisms.
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