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Question 31571
JEE Physics · Medium

Capacitance: Capacitor as Sensor MCQ

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Capacitor as SensorMediumQuestion 31571

Question

In a capacitive pressure sensor, applied pressure reduces plate separation. This causes capacitance to:
  1. A
    Decrease
  2. B
    Increase
    Correct
  3. C
    Stay same
  4. D
    Become zero

Correct answer

Increase

Explanation

C = ε₀A/d. Reduced d increases C. This change is measurable as a change in stored charge or frequency of oscillation.

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