Scientific Ontology

C

Electromagnetism

Capacitance

Ability of a system to store electric charge per volt.

farad (F)

Dimension: $[\,M^{-1} L^{-2} T^4 I^2\,]$

How values of capacitance span the physical world (in F, log scale).

Small ceramic cap

10^-10 F

Electrolytic cap

10^-3 F

Supercapacitor

3.00 × 10³ F

Lower limit10^-12 FUpper limit10³ F

Capacitance

C = \dfrac{Q}{V}

Capacitor Energy Stored

W = \tfrac{1}{2} C V^2

Capacitor Discharge

Q = Q_0 e^{-t/RC}