Re: Current across the antenna loading coil - from scratch



Cecil Moore wrote:
John Popelish wrote:

If you don't believe me, simulate it with EZNEC. Connect a source to a parallel combination of C and R. Record the phase of the current with respect to the voltage (the current will lead). Then add a series inductance that cancels the capacitance, and the current will be delayed till it matches the phase of the applied voltage. Power factor corrected.


The "current will be delayed"?

Compared to the phase of the current without the inductor being in series."

That cannot be, according to
W8JI and W7EL. They say there is no more delay through a 6"
coil than through a 6" wire.

You are talking about delay from one end of the coil to the other. I am talking about delay, compared to the same circuit without the inductor in place. See the difference?

That's what the argument is all about.

Not from where I am watching.

Instead of the current being delayed, their voltage
jumps ahead in time at greater than the speed of light in
order to correct that power factor.

Good one. Pull the other.
.



Relevant Pages

  • Re: Capacitor bank pretty well complete
    ... Charge them with line voltage and discharge into ... short the terminals through a coil. ... will make some generous magnetic field, maybe I can shoot an aluminum plate ... A capacitor is the opposite of an inductor. ...
    (sci.electronics.design)
  • Re: 74LS05 driving Relay
    ... They show the yoke coil being in series with a capacitor which together is ... Where E is the voltage generated (or applied to the inductor), ... With the diode antiparallel to the relay coil, ...
    (sci.electronics.design)
  • Re: Current through coils
    ... You have consistently disagreed with me when I said time delay through ... I have never argued with you about the voltage delay through a ... coil. ... standing wave antennas have standing waves so a 75m ...
    (rec.radio.amateur.antenna)
  • Re: Current through coils
    ... degrees that the coil supplies to the antenna. ... any measurements involving standing wave current as being ... wave current delay through the coil. ... The current is known to lag the voltage ...
    (rec.radio.amateur.antenna)
  • Re: Standing Wave Phase
    ... "through the inductor" is through the coil. ... This magnetic flux, since conductor spacing is close and the distance very small, links the starting turn very tightly to the next turn. ... The rapidly changing magnetic flux causes charges to move in the next conductor, and the changing magnetic field couples through all the close spaced turns with very little time delay. ...
    (rec.radio.amateur.antenna)