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Richard Harrison wrote:
The statements need qualifications. Perhaps waves "cancel" without ceasing to exist. Some waves cancel without ceasing to exist. But if the cancellation is permanent, the waves simply cease to exist. My speculation is that two radiated fields which cancel don`t eliminate each other at all. That is true, but that is not what we are discussing. We are discussing permanent wave cancellation within the confines of a transmission line. On wires, it`s different. Connect same-frequency energy exactly out-of-phase, and you have a short circuit. No you don't, Richard. Maximum current occurs at a short circuit. The net current from two canceled waves is zero. The net voltage from two canceled waves is zero. It is neither a short circuit nor an open circuit to the canceled waves. It is simply wave cancellation. To the canceled waves, it looks like both a short circuit to the two voltages and an open circuit to the two currents. It is the same thing that happens at the air to thin-film interface in perfect non-glare glass when the incident beam is coherent. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
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