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← ScienceWhich outcome occurs in a poorly shielded capacitive sensor near high-frequency noise sources?
A)Accurate discharge rate measurement.
B)Spurious capacitance fluctuations appear.✓
C)Stable electric field is maintained.
D)Reduced sensitivity to real changes
💡 Explanation
Spurious capacitance fluctuations manifest because electromagnetic interference overwhelms the intended capacitive measurement via parasitic capacitance. Electromagnetic induction impacts the reading greatly, therefore noise corrupts real signals, rather than improving accuracy, stable fields, or suppressing sensitivity.
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