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← ScienceWhich outcome occurs when a dielectric material within a high-voltage capacitor experiences partial discharge?
A)Increased capacitance due to polarization
B)Decreased breakdown voltage from treeing✓
C)Reduced ESR from improved conductivity
D)Stable operation at elevated temperatures
💡 Explanation
When partial discharge erodes the dielectric material, dielectric breakdown field strength decreases in localized regions because the process creates branching, tree-like conductive paths that propagate through the dielectric, reducing its insulation capability. Therefore decreased breakdown voltage results, rather than other effects which require a fully functional dielectric.
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