If both the plate area and the plate separation of a parallel-plate capacitor are doubled, the capacitance is:
A)doubled
B)halved
C)unchanged
D)one-fourth the original
E)quadrupled

Question

Quizplus · Accepted Answer

The capacitance of a parallel-plate capacitor is directly proportional to the plate area and inversely proportional to the plate separation. If both are doubled, the increase in plate area is exactly balanced by the increase in plate separation, leaving the capacitance unchanged.

If Both the Plate Area and the Plate Separation of a Parallel-Plate