The amount of electricity a capacitor can store is directly proportional to the _________.

The amount of electricity a capacitor can store is directly proportional to the _________.

• A. Plate area and inversely proportional to the distance between the plates
• B. Distance between plates only
• C. Dielectric constant only
• D. Plate thickness

Answer: (A)

Capacitance depends on geometry and the material between the plates. The relationship is C = εr ε0 A / d, so the stored charge at a given voltage is Q = C V. This means increasing plate area adds more charge storage, while increasing the distance between the plates reduces it. The dielectric constant (εr) of the material between the plates also increases capacitance, further boosting how much charge can be stored. So the amount of charge that a capacitor can hold grows with plate area and falls as the plate separation grows, with the dielectric material also enhancing storage.

Capacitance depends on geometry and the material between the plates. The relationship is C = εr ε0 A / d, so the stored charge at a given voltage is Q = C V. This means increasing plate area adds more charge storage, while increasing the distance between the plates reduces it. The dielectric constant (εr) of the material between the plates also increases capacitance, further boosting how much charge can be stored. So the amount of charge that a capacitor can hold grows with plate area and falls as the plate separation grows, with the dielectric material also enhancing storage.