A sample post late in the thread follows below. I wrote (and
>posted) a basic program to integrate the effects of a spherical
>distribution of charge, and sample data. We learned a few things from the
>exercise if you recall...
I worked something out on this also. A spherical charge will experience a minimum of capacitance. The capacitance is a geometric property. The capacitance in a system of fields corresponds to the reciprocal of the elasticity of a mechanical system. Several relationships exist.
volts = (1/Cap) q
force= kx
see
http://www.angelfire.com/scifi2/zpt/chapter7.html
Frank Z

