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Brainteaser
Richard Harrison wrote:
Cecil, W5DXP wrote: "How many joules are contained in that feedline?" Total joules on the line is 300. That can be shown to be true by noting that during the transient buildup to steady-state, 300 joules sourced by the generator have not yet reached the load. That remains true until the generator is powered down, i.e. all during steady-state. Forward power minus the reflected power equals 100 watts being supplied by the generator to the load with 200 watts forward power and 100 watts reflrcted power in the line. But what about the people who say there's no energy in the reflected wave? Reckon how they sweep all those joules, whose energy must be conserved, under the rug? :-) -- 73, Cecil http://www.qsl.net/w5dxp |
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