Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #401   Report Post  
Old February 12th 04, 11:15 PM
Cecil Moore
 
Posts: n/a
Default

Jim Kelley wrote:

Cecil Moore wrote:
Don't you realize that if current is flowing out
of the '+' terminal of a battery, that same current is flowing into the
'-' terminal?


Everybody realizes that Cecil. You don't need to explain. You need to
understand.


Your attitude toward AC tells me that you don't realize that, Jim.
An AC source is like a battery that changes its '+' terminal to a
'-' terminal every 1/2 cycle in accordance with a sinusoidal magnitude.
Just because you use a Sharpie pen to mark one terminal of an AC source
as the '+' terminal, doesn't mean the current out of that terminal
is always positive. Good Grief - half the time it's negative!
--
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 100,000 Newsgroups - 19 Different Servers! =-----
  #402   Report Post  
Old February 12th 04, 11:30 PM
Jim Kelley
 
Posts: n/a
Default

Cecil Moore wrote:
Just because you use a Sharpie pen to mark one terminal of an AC source
as the '+' terminal, doesn't mean the current out of that terminal
is always positive.


Hey, you're the one who told the story about the 'hot wire' being the
one that the AC comes out of, not me.

:-)

73 de ac6xg
  #403   Report Post  
Old February 13th 04, 12:42 AM
Yuri Blanarovich
 
Posts: n/a
Default


Yuri Blanarovich wrote:
So when I plug my toaster into the AC outlet the current doesn't go into

one
end?


Have you got standing waves on your toaster, Yuri?

73, Jim AC6XG


It's always standing. Sometimes I use laying on the side if I want warm up
pizza slice. That would make laying waves?

So when waves are standing, they don't go to antenna? Antenna don't radiate?
Cool dude!

Yuri
  #404   Report Post  
Old February 13th 04, 12:45 AM
Jim Kelley
 
Posts: n/a
Default

Yuri Blanarovich wrote:
It's always standing. Sometimes I use laying on the side if I want warm up
pizza slice. That would make laying waves?

So when waves are standing, they don't go to antenna? Antenna don't radiate?
Cool dude!

Yuri


See how easy it is to get the flow of current mixed up with the flow of
energy? That's what Cecil's been doing.

Anyway, I enjoy your sense of humor, Yuri.

73, Jim AC6XG
  #405   Report Post  
Old February 13th 04, 04:41 AM
Cecil Moore
 
Posts: n/a
Default

Jim Kelley wrote:
Cecil Moore wrote:
Just because you use a Sharpie pen to mark one terminal of an AC source
as the '+' terminal, doesn't mean the current out of that terminal
is always positive.


Hey, you're the one who told the story about the 'hot wire' being the
one that the AC comes out of, not me.


You apparently would be surprised to know that the "hot wire" in
your house has a negative voltage on it half the time. Current
flows out of the "hot wire" half the time and flows into the
"hot wire" half the time. That's simply the nature of AC.

There's no "hot wire" in a balanced RF transmission line.

*--------------------------------*-----------*
| | |
| | | |
*-----| |-----------------* | |
| | | voltmeter Ammeter
| | | |
| | | | Load
*-----| |----/\/\/\/\/----* | |
| ccw ^ cw | |
| | |
*----------------*-----------*

There are two batteries and a potentiometer hooked up as shown. With the pot in
the fully ccw position, what does the voltmeter read? Which way is the current
flowing?

With the pot in the fully cw position, what does the voltmeter read? Why way is
the current flowing?

It doesn't take a genius to see that if the pot is turned in a certain repetitive
way, the voltage across the load could be sinusoidal with the current reversing
its direction every 1/2 cycle. There's only two DC batteries and a magnitude pot.
Where's the phase?
--
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 100,000 Newsgroups - 19 Different Servers! =-----


  #406   Report Post  
Old February 13th 04, 04:48 AM
Yuri Blanarovich
 
Posts: n/a
Default


See how easy it is to get the flow of current mixed up with the flow of
energy? That's what Cecil's been doing.

Anyway, I enjoy your sense of humor, Yuri.

73, Jim AC6XG




Applying for further education:
so what is flowing energy, no current flowing?
This is series! (As freepers would say)

double BUm


  #407   Report Post  
Old February 13th 04, 05:13 AM
Cecil Moore
 
Posts: n/a
Default

Yuri Blanarovich wrote:

See how easy it is to get the flow of current mixed up with the flow of
energy? That's what Cecil's been doing.


Jim must have just realized that is what he has been doing wrong and
is now blaming me for it. Energy moves from an RF source to an RF load.
Current moves back and forth through the source. Current moves back
and forth through the load. The electrons are not lost from the
system. They just move back and forth coherent with the RF frequency.
Electrons possess charge. Current is the time derivative of that
charge. When the movement of charge changes direction, so does the
current.

Applying for further education:
so what is flowing energy, no current flowing?


If AC current always flows toward the load in one wire of a balanced
transmission line, which way is the current flowing in the other wire?
:-) If it is also flowing toward the load, it is common-mode current,
not differential.
--
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 100,000 Newsgroups - 19 Different Servers! =-----
  #408   Report Post  
Old February 13th 04, 05:16 AM
Dr. Slick
 
Posts: n/a
Default

Cecil Moore wrote in message ...
Dr. Slick wrote:
I think every so often, it's important to point out how
full of sh** Cecil Moore really is...


When you cannot present a rational argument, mount an ad
hominem attack? What is it that you disagree with me about?
Do you think AC current doesn't reverse direction every 1/2
cycle?



I think you reverse your argument every 1/2 cycle!


S.
  #409   Report Post  
Old February 13th 04, 02:36 PM
Cecil Moore
 
Posts: n/a
Default

Dr. Slick wrote:
Cecil Moore wrote:
I think you reverse your argument every 1/2 cycle!


Must be your comprehension going into reverse every 1/2 cycle.
I have been perfectly consistent. Most people just don't
understand that AC current reverses direction every 1/2
cycle and flows backwards just as often as it flows forward.
All they have ever seen is an RMS current arrow pointing
away from the source toward the load. The RMS model for
AC has seduced a whole generation of engineers into
feeling the RMS model dictates reality.
--
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 100,000 Newsgroups - 19 Different Servers! =-----
  #410   Report Post  
Old February 13th 04, 05:30 PM
Richard Clark
 
Posts: n/a
Default

On Fri, 13 Feb 2004 08:36:44 -0600, Cecil Moore
wrote:
Most people just don't understand

What a mission of salvation inhabits you.
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
current/inductance discusion Art Unwin KB9MZ Antenna 54 January 4th 04 07:08 PM
A Subtle Detail of Reflection Coefficients (but important to know) Dr. Slick Antenna 199 September 12th 03 10:06 PM
Eznec modeling loading coils? Roy Lewallen Antenna 11 August 18th 03 02:40 AM


All times are GMT +1. The time now is 09:39 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017