Which of the following statements about parallel plate capacitors is/are correct?

I. Capacitance of the capacitor is inversely proportional to the distance between the plates

II. Capacitors can filter a.c signals from d.c

III. Capacitors can store charges

  • A Capacitance of the capacitor is inversely proportional to the distance between the plates
  • B I only
  • C I and II only
  • D II and III only
  • E I, II and III
waec 2018physics

The correct answer is C. I and II only

Capacitors pass AC but block DC signals (when charged up to the applied DC voltage), they are often used to separate the AC and DC components of a signal. Capacitors are also primarily used to store energy.

Previous question Next question