Capacitance (AQA A-Level Physics): Flashcards

Component that stores electric charge

Two conductive plates separated by gap

Insulating material between capacitor plates

Ratio of $ε$ to $ε_0$ (dielectric constant)

$ε_r = \frac{ε}{ε_0}$

$C = \frac{Aε_0ε_r}{d}$

Increases capacitance

Increases capacitance

+ve ends face -ve plate, -ve ends face +ve plate

Internal field opposes external, less $V$ needed