Re: The Rest of the Story

Keith Dysart wrote:
Your imcompleteness is that you forgot to include the
energy flow into the electric and magnetic fields around
the coil. When one does not forget this flow, all of
the flows will balance at every instant.

Sorry, it may or may not be a coil. It is in a black box
whose contents are unknown. Including the energy flows
inside the black box is impossible. The instantaneous
power into the black box does not balance the instantaneous
power out of the black box.
--
73, Cecil http://www.w5dxp.com
.

Relevant Pages

  • Re: The Rest of the Story
    ... the flows will balance at every instant. ... power out of the black box. ... Conservation of energy and its corollary, conservation of power, ... we can compute the energy flow into the storage elements within ...
    (rec.radio.amateur.antenna)
  • Re: Constructive interference in radiowave propagation
    ... energy flow involves calculating the power at various points and times in the circuit or transmission line of interest. ... in the waves do the interfering. ... Could it be that the wave reflection model is a ...
    (rec.radio.amateur.antenna)
  • Re: The Rest of the Story
    ... conservation of energy. ... You have argued that the instantaneous power dissipated ... The energy flow into the battery is exactly and always ... If the sign of the two interfering voltages are opposite, ...
    (rec.radio.amateur.antenna)
  • Re: Constructive interference in radiowave propagation
    ... I'm leery of the concept of propagating power, but most certainly negative power is the time rate of movement of energy that's going the other way. ... If we make a simple circuit of sine wave source and load where the load is anything but pure resistance, we can see that the energy goes one way for part of the cycle, the other way for the rest of half the cycle, then repeats the movement in alternate directions during the second half of the cycle. ... A real analysis of energy flow involves calculating the power at various points and times in the circuit or transmission line of interest. ...
    (rec.radio.amateur.antenna)
  • Re: FOR SALE - HOME BREW BALANCED LINE ANTENNA TUNER - TWIN ROLLER INDUCTORS
    ... Power is a measure of that energy flow ... in the waves do the interfering. ... Well, as long as no one pokes an eye out, I guess that boys will be boys. ...
    (rec.radio.amateur.antenna)