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Cecil Moore wrote:
John Popelish wrote: If you want to deny the existence of forward and reflected current, be my guest. I deny it. There is only current at a point, just as there is only water jiggling around under a wave on the ocean. Well, that means denial of the distributed network model. Please don't be silly. Distributed networks have points. An infinite number of them. Calculus is used to smoothly move through this infinity of points. But at any particular point, current is defined as the rate of movement of charge past that point. I've been waiting for that to happen. There's no point continuing an argument with someone who denies one of the cornerstones of EM wave theory. So you deny that there are any points (where voltage can be defined or that charge passes) in all distributed networks? How strange. The distributed network model is accepted as a superset of the lumped circuit model and works when the lumped circuit model fails. Yes. And distributed networks are made of a continuum of points. The fact remains that standing wave current phase cannot be used to measure phase delay through a wire or through a coil. There is no phase information in standing wave current phase. Yes. That fact remains. It is a non sequitur in the above discussion, however. That the standing wave current cycle has the same phase along a half wavelength of conductor has nothing to do with the current through that conductor having a point definition (the x in the standing wave function you keep displaying). And at any point the current is AC, spending half of the time going one way, and half of the time going the other way (the positive and negative parts of the cycle in time, defined by cos(kx)*cos(wt), once you pick and x. |
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