# Vacuum Capacitance

1. Sep 28, 2008

### Apteronotus

Does anyone know what the value of capacitance in a vacuum ($$C_{0}$$) is?
Would this be a constant or dependent on the particular capacitor?

Thanks

2. Sep 28, 2008

### uart

The electrical permitivity of a vacuum is 8.85 pF/m.

The actual value of any capacitance depends on it's geometry