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) tripled
E) quadrupled

Question

Quizplus · Accepted Answer

The capacitance of a parallel-plate capacitor is given by C = ε₀(A/d), where A is the plate area and d is the separation. Doubling both A and d keeps the ratio A/d unchanged, so the capacitance remains unchanged.

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