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Re: SI and electric charge



Jack Uretsky wrote:

With regard to your last paragraph, how do you
determine that two charges are "identical"?

For example, by placing each of them near a third charge and
comparing forces. Note that the magnitude of the third charge
(like the magnitude of the "second wire", to which you referred
in the previous message) has nothing to do with this procedure,
at least in principle. In practice the procedure is not simple,
but that is a separate issue.
Ludwik Kowalski