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RE: Cap Value

"I undersstand the 'extreme' edges of this kind of thought experiment, but those who rely only on 'the practial' will not..."

You are certainly right about that!

I guess one of the difficulties of using these kinds of arguments is that it assumes some familiarity with the notion of taking limits, and with the idea that it must be possible to reduce some quantity (like a ripple voltage) to become "sufficiently small" that it can no longer be observed.

Thus, one can speak casually of taking the "infinite capacitance limit" when one does not actually intend that this limit will ever actually be attained. What is important is that one could in principle, make the capacitance sufficiently large that ripple effects could be reduced below the threshold of audibility.

The silly thing is that this is an utterly trivial, and obvious, fact, but it gets dragged out in some of these online discussions. So what was intended as an almost throw-away remark about an obvious limit gets blown up into a somewhat vacuous debate. I am put in mind of TK's rather nice comment in the LTP thread yesterday about the "trivial pursuit" phenomenon!


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  • RE: Cap Value - cpotl 06/13/2116:22:11 06/13/21 (1)
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