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← TechnologyWhich outcome occurs with a high-frequency signal through a reverse-biased PN junction?
A)Capacitive current becomes significant✓
B)Static biasing point stabilizes sharply
C)Barrier depletion region disappears
D)Junction rectification enhances drastically
💡 Explanation
Significant capacitive current develops because the PN junction acts like a capacitor, where the depletion region is the dielectric; as the frequency grows, the capacitive reactance drops, therefore AC current flows more easily rather than being blocked as in DC biasing.
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