Which of the following changes will increase the capacitance of a parallel-plate capacitor? (There could be more than one correct choice.)
A) increase the charge on the plates
B) introduce a dielectric material between the plates
C) decrease the potential between the plates
D) increase the potential between the plates
E) decrease the separation between the plates

Question

Quizplus · Accepted Answer

Introducing a dielectric material between the plates (B) increases the capacitance by reducing the effective electric field within the capacitor, allowing it to store more charge for a given potential difference. Decreasing the separation between the plates (E) also increases capacitance because the electric field strength between the plates increases, allowing more charge to be stored for the same potential difference.

Which of the Following Changes Will Increase the Capacitance of a Parallel-Plate