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Cecil,
1. I have looked at that figure, and I suspect many others have as well. There is no information given about dimensions or any other modeling conditions, so it is difficult to say anything more than, "Yep, there's a bunch of lines and numbers on that figure." 2. As I pointed out recently, a phase shift of 178 degrees is really a phase shift of 2 degrees. It is a common, but unfortunate, convention that the ordinary sign reversal of a sinusoidal function is deemed a "phase shift" or "phase reversal". The only "phase" worth discussing is the one that occurs inside the argument for the sinusoidal function. That phase does not typically undergo sudden jumps or reversals. 73, Gene W4SZ Cecil Moore wrote: Speaking of answers, here is a question to which you have, so far, avoided giving an answer. In the graphic at: http://www.qsl.net/w5dxp/3freq.gif , the currents in the center graphic reported by EZNEC a The current at the bottom of the coil is 0.17 amps with a phase angle of -1.72 degrees. The current at the top of the coil is 2.0 amps with a phase angle of -179.6 degrees. The current at the top of the coil is about 12 times the magnitude of the current at the bottom of the coil. The phase shift through the coil is about 178 degrees. Once again, please explain those results. Thanks in advance. -- 73, Cecil, W5DXP |
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