# Derive the formula E=q/e0A

1. Jun 17, 2015

### Fluxxx

For a parallel plate capacitor, the electric field can be written as
$$E=\frac{q}{\epsilon_{0}A}$$
In my text book it doesn't say how this is derived. I wonder how it is derived - i.e. how can one get to this equation from simpler equations?

2. Jun 17, 2015