JAMB Physics 2024 Paper

Concept:Capacitance measures how much charge a capacitor stores per unit voltage.It depends on the plate area, the dielectric material, and the distance between the plates.Explanation:For a parallel-plate capacitor, the capacitance is given by$$C = \frac{\varepsilon A}{d}$$where $\varepsilon$ is the dielectric constant, $A$ is the plate area, and $d$ is the distance between the plates.From this relation, $C$ is directly proportional to $A$ and $\varepsilon$.Therefore, $C$ is inversely proportional to $d$, the distance between the plates.Increasing the plate separation reduces the capacitance.Answer:C. distance between plate.