How to calculate electrostatic potential from Gaussian results? (like V min, V max and surface area?

Answer 1

This takes me back over 35 years to my college days. I have not reviewed my physics book (and I am not sure where it is).

Anyway, here is a summary:

Gauss's law states that the electrical potential is considered a point charge. From that point, the potential dissipates following the inverse square law. (Recall that a point source of light or any thing else weakens accoring to the inverse square law; actually consider a point source - go out some distance r from the center and the intensity is spread over the entire sphere; the area of a sphere is 4*Pi*r^2).

Having said all that, for irregular shapes, the math becomes pretty intense - and complex.

I hope this gave you a start - hardly is this complete.