# How to imagine an electric field?

1. Dec 26, 2009

Is it 2 dimensional or 3 dimensional?

2. Dec 26, 2009

### tiny-tim

Space is 3 dimensional, so any field is 3 dimensional.

Did you have a specific electric field in mind?

EDIT: just occurred to me …

if a field was 2 dimensional, it would fall off as 1/r instead of 1/r2, since it would spread out over a circle (~ r) instead of a sphere (~ r2)

Last edited: Dec 26, 2009
3. Dec 26, 2009

thanks, I was just going over physics 2 material which I'll take next semester.