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← ScienceWhich outcome occurs when AC voltage frequency applied across dielectric material within capacitor approaches its resonant frequency?
A)Dielectric breakdown from heat dissipation✓
B)Capacitance increase due to polarization
C)Increased impedance restricts current flow
D)Stable charge storage with minimal loss
💡 Explanation
When AC frequency nears resonant frequency, dielectric losses intensify because the polarization mechanism lags behind the rapidly changing electric field leading to significant heat generation that causes dielectric breakdown. Therefore, dielectric breakdown results, rather than increased capacitance, increased impedance, or stable charge storage which require lower frequency applications.
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