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← ScienceWhich risk increases when a planar capacitor's dielectric degrades?
A)Dielectric breakdown voltage decreases✓
B)Capacitance temperature coefficient reduces
C)Electrode separation distance increases
D)Resonant frequency steadily increases
💡 Explanation
Decreasing dielectric strength lowers the electric field needed to cause dielectric breakdown, because defects now allow easier electron arcing and increased current density; therefore breakdown risk increases rather than frequency shift or affecting the spacing.
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