After this is done, the shell is electrically neutral.
I realize that this is horrible, but I've honestly blanked on the definition of "electrically neutral" in the context of Physics. I'm blaming the sleep deprivation and that pink elephant dancing in the corner of the room - that bastard's supposed to remember this stuff for me. Also, he was green yesterday which just raises more questions than I'm prepared to deal with at this moment.
-If a shell is electrically neutral, does this mean it lacks a charge? Or an electrostatic potential? Or a non-zero electric field? Or what?
Incase it's relevant, this is the context of Laplace's Equation. The answer to this question is going to set a boundary condition at the surface of the shell, but I'm not sure what that boundary condition is since I can't recall what the term means.