Plandai Biotechnology Inc (PLPL)

[bri123]

Gauss's law says the maximum charge a perfect sphere can obtain is determined by its radius. So, no matter how the charge was obtained, there is a limit to the charge a particle (liquid or otherwise) can carry. Variations can occur if the conductivity or density of the sphere is changed though. So, yes, its size does effect the rate it can collect a charge and the quantity of charge, since the current source (or sink) used to apply the charge has a limited current capacity, and the interaction time of the particle with the source of the charge matters.

The "induction" charging is a sales gimmick .Induction in a conductive material only induces an electric field in the material while the magnetic field is changing. Once the material is out of that changing field (or the particle has moved beyond it), the electrons just move back to where they where, and no net charge is created. Inducing electric fields in spheres (as we will have with a liquid due to surface tension) is even more complex due to the way Eddy currents move in spheres, and often doesn't even result in a net electric field being created.