Okay, why don't caps equalize like batteries do? A cap completely isolates the positive and negative, a battery doesn't. An electrolytic cap is closer to a battery that way. So the more the two potentials are separated the more "condensing" takes place. The separate charges are just conducting, and it's not a perfect conductor, there is no force behind it. Nothing to "com-pair" it to. Maybe it would work with super conductors at absolute zero or something, but there are always two potentials working as one somewhere. It might be the dielectric is stealing some of the charge but I doubt it because it's so thin, but since too much charge will blow a hole in it, it probably works the other way too. What would a 3 plate cap do? + - +
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