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← ScienceWhich consequence directly results when parasitic capacitance varies in high frequency crystal oscillator circuits?
A)Spurious frequency mode oscillations appear✓
B)Internal electrode resistance proportionally decreases
C)Crystal lattice experiences reduced mechanical stress
D)Drive level tolerance substantially increases
💡 Explanation
Spurious oscillations result from uncontrolled resonance. Because distributed capacitance forms unwanted LC circuits, *resonant frequency drifting* occurs; therefore frequency stability degrades, rather than resistance decreasing or drive tolerance improving in the crystal due to altered biasing.
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