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← ScienceWhich consequence results when stray radio frequency interference bypasses filter capacitance?
A)Phase-locked loop loses lock abruptly✓
B)Quartz oscillator frequency drifts slightly
C)Transistors achieve higher voltage gain
D)Capacitor plates build up electrostatic charge
💡 Explanation
The phase-locked loop unlock occurs because the injected noise interferes with the feedback signal via parasitic capacitance, therefore the VCO oscillates randomly rather than following an input signal, with stable gain holding it locked.
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