This
is the part which is the most interesting/most boring for some of the
readers. In light of that I will try to keep this short.
This
is a diagram of how the electrons would flow up from the center of the
Lightsaber and be pulled back down by a charged ring placed around the
outside. This is assuming no air resistance, or electron-electron
interaction.
All
of which is actuially pretty interesting because it shows that either
you would have to have electrons moving at amazing speeds (near the
speed of light). Or you would need a huge number of electrons
(measureable in kilograms!).