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David Rutherford wrote:
Answer my first question, first:
"How do you propose to assemble a configuration, in the first place, if
the assembled charges keep flying off every time you bring in a new
one?"
I'd hold them so they don't move.
Then please show me how you determined that my result predicts that the
energy stored by a capacitor is CV^2. Show your work.
Fine. You double count the contribution of each charge to the total
energy. Therefore, since the correct answer is 1/2 CV^2, you get
CV^2.