### Voltage and Current relationship

There is a relationship between the charge on a capacitor and the voltage across the capacitor. The relationship is simple. For most dielectric/insulating materials, charge and voltage are linearly related.

Q = C V

where:

V is the voltage across the plates.

C = capacitance in farads (F)V = voltage in volts (V)

Q=charge stored in the capacitor

When V is measured in volts, and Q is measured in couloumbs, then C has the units of farads. Farads are really coulombs/volt. C = Q / V

A capacitor has a voltage that is proportional to the charge that is stored in the capacitor.