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
I only
B
I and II only
C
II and III only
D
I, II and III
Verified Correct Answer: D.
Physical Principles & Numerical Solution
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.
Source: Myschool Past Questions Archive (Record #49843)