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← ScienceWhich effect will continued application of reverse bias voltage cause in an electrolytic capacitor containing an ionic electrolyte?
A)Formation of non-conductive surface oxides✓
B)Increased capacitance due to ion migration
C)Electrolyte boiling due to joule heating
D)Reversal of the dielectric polarization
💡 Explanation
When subjected to continuous reverse bias, ionic migration within the electrolyte leads to the electrochemical formation of an insulating oxide layer on the anode surface, passivating and eventually disabling the capacitor. Therefore, formation of oxides inhibits conduction, rather than increased capacitance, boiling or polarization reversal which involve different phenomena or capacitor types.
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