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On Sep 16, 8:32*pm, "JB" wrote:
What, this is not the "Pulling Your Leg Festival?" Damn, it appears I have caught the wrong door again! *Last time this happened, it was a womens restroom, at walmart, no less :-( -- at least this is less embarrassing ... grin ROFLOL I did that at a technical seminar in a hotel once. *I was pondering the ramifications of the training and didn't even look at the door. *It wasn't until the only woman there rushed in (probably preoccupied as well) and plopped down and peed that it dawned on me that there was something very very wrong! In any case, Art seems to have trouble articulating and I have completely lost touch with any sense he might have made somewhere in the great pile of this thread. I get that even though a resonant dipole can be treated as if it were a lumped constant at times, it really isn't that. *Do electrons fly back and forth down the pole and induce a magnetic field? * No, they are generating a magnetic field when the current is at the surface which means eddy currents are also there. neither of these appear when the current is enclosed Without flying off the ends? Yes but that is hard to make sense of because there should be no current flow in an open wire. The wire may be open but the current flow IS closed *A loop element maybe, but the resonant loop has the same current as the center fed dipole. *Perhaps looking at the re-entrant cavity makes more sense. John you are equating resonance with equilibrium, a dipole in antenna terms is a half wavelength resonant but not in a state of equilibrium. Equilibrium is a staple in this Universe. First comes equilibrium after which you may consider resonance.......but not the reverse. Both of the samples are of a half wave length thus it is not in equilibrium. Equilibrium comes first in the satisfaction analysis, if it fails all falls apart. Best regards Art |
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