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I don't understand what you are trying to say. Express yourself, less
ambiguously, in fewer words. Or perhaps you are nit-picking. I can't tell. I have just explained that the resulting capacitance between adjacent conductors in a coil is very small in comparison with the capacitance of a large solid cylinder (of the same diameter as the coil) to the rest of the world. The capacitance to the rest of the world includes electric lines of force from one half of the cylinder to the other, especially from one end to the other. The capacitance of the coil we are dealing with has very little to do with coil turns. ---- Reg. "John Popelish" wrote in message ... Roy Lewallen wrote: Of course I understand that both L and C are distributed. But the C in the transmission line formula isn't a longitudinal C like the C across an inductor; it's the (distributed, of course) shunt C between the two conductors of the transmission line. I don't believe you can justify claiming that the C across an inductor is even an approximation for the C from the inductor to whatever you consider to be the other transmission line conductor. Agreed. They are as different as a shunt element and a series element in a pi filter. |
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