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El Presidente
Full Member
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Location: Colorado
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| Offtopic? |
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I have now officially argued with the stop sign mentioned in my quote and displayed to the left.  Rolo is hard to pin down. Must be cause he is located in two places at once, as indicated under his name to the left.
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Sun Apr 23, 2006 3:49 am |
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Rolo
Yo' Daddy
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| Re: Offtopic? |
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quote:
Originally posted by El Presidente
"The path of least resistance" was used by our instructors in Electronic Principals to remind us that as resistance increases current goes down.
However, current does not EXCLUSIVELY travel the path of LEAST resistance as it does down a path of NO resistance; they are entirely different. Electricity does not operate under Newtonian physics. Your instructor was misrepresenting Ohm's Law.
From http://www.ecmweb.com/mag/electric_path_least_resistance/index.html
Electricians thought these installations were safe because “electricity takes the least resistive path, and it bypasses high resistive paths.” Unfortunately, such thinking resulted in several deaths. This thinking still exists. Some equipment installation instructions require a ground rod without an equipment grounding conductor, claiming it's a safe installation. Electricity does take low-resistance paths, including the one of least resistance. But it also takes every other path available to it.
quote:
Originally posted by El Presidente
Increasing one resistor will still increase the total resistance of the circuit as represented by R=1/[(1/R1)+(1/R2)+(1/R3)]. As far as shorts are concerned that would hardly meet the required need.
You cannot arbitrarily dismiss a short.
Solve R=1/[(1/R1)+(1/R2)+(1/R3)+(1/0)]
(1/near-zero) would EXCLUDE all other paths.
Also...pull out your dictionary and look up the word shunt.
"Expect me when you see me."
Last edited by Rolo on Sun Apr 23, 2006 12:26 pm; edited 3 times in total |
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Sun Apr 23, 2006 12:15 pm |
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Safora
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quote:
The path of least resistance...
LOL! You guys are funny. Hey at least your  posts are educational.
quote:
Originally posted by Rolo
HEHE
The importance of context: When you ask your wife at the bookstore if they have books on Schroedinger's Cat...be sure to tell her it is NOT in the Pets section.
Yea, I was wandering around the pets section looking for a book entitled "Cat" by some guy named Schroedinger.
Something like this...
Hey, how was I supposed to know? I took things like bird-watching in high school. Besides I was having way too much fun back then to be concerned with some dead cat in a box.
quote:
Originally posted by El Presidente
I have now officially argued with the stop sign
Yea, doesn't it feel like doing this  would be more productive, and a lot less painful, sometimes?
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Sun Apr 23, 2006 12:17 pm |
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El Presidente
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Location: Colorado
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| Re: Offtopic? |
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[quote="Rolo"] quote:
Originally posted by El Presidente
"The phrase obviously is a simple way to remind us of a complex concept, without repeating the same thing over and over again.
I thought this statement made it clear that I was conceding the point, was I wrong?
quote:
Originally posted by Rolo
However, current does not EXCLUSIVELY travel the path of LEAST resistance as it does down a path of NO resistance; they are entirely different.
Are you still on about no resistance? I thought that had been previously discussed and determined that there is "No resistance", the equation only breaks down at 0 not really close to 0.
quote:
Originally posted by Rolo
Electricity does not operate under Newtonian physics.
Good point, but since it is difficult to track the individual electrons that make all this happen, it is a lot more difficult to work with that directly.
quote:
Originally posted by El Presidente
Increasing one resistor will still increase the total resistance of the circuit as represented by R=1/[(1/R1)+(1/R2)+(1/R3)]. As far as shorts are concerned that would hardly meet the required need.
quote:
Originally posted by rolo
You cannot arbitrarily dismiss a short.
I can, since for the purposes of the analogy, I stated there was no short in the circuit. Not to say the wires themselves couldn't be considered a "short". Most would not consider a properly funtioning resister not to be a short.
On the one hand you keep making the statement that power will flow no matter what if there is a path and on the other hand you seem to be indicating that no power will flow down the other paths in a 0 resistance senerio. You can not have it both ways. I think the point you are trying to make is an open is the only way to remove all power, which I would definately agree with.
quote:
Merriam-Webster Online Dictionary
Analogy 2 a : resemblance in some particulars between things otherwise unlike : SIMILARITY
Apparently I must point out the "otherwise unlike" which was the whole point of posting the definition. The whole point of an analogy is to point out some superficial similarities between to different things and then move on, not get bogged down in a discussion on the exact parameters the analogy breaks down. The original point was that simple is good as long as the context is not lost. By continuing the discussion you are not invalidating my original arguement, mearly pointing out lost context.
Your statement about shunts is irrelevant.
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Sun Apr 23, 2006 5:26 pm |
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Rolo
Yo' Daddy
Cash: $ 309.70
Posts: 1551
Joined: 13 Mar 2005
Location: Colorado/Florida
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| Re: Offtopic? |
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quote:
Originally posted by El Presidente
Your statement about shunts is irrelevant.
Oh, I forgot...a non-EE wouldn't understand that. 
A shunt diverts ALL current, usually to ground by having no resistance.
Henceforth, you can talk to this:
"Expect me when you see me."
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Sun Apr 23, 2006 6:11 pm |
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El Presidente
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Cash: $ 13.85
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Location: Colorado
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| Re: Offtopic? |
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quote:
Originally posted by El Presidente
Your statement about shunts is irrelevant.
The shunt is irrelevant because it was not part of the described parameters of the analogy.
quote:
Originally posted by Rolo
A shunt diverts ALL current, usually to ground by having no resistance.
If by shunt you mean magic wand, then yes.
You can shunt almost all current, but unless you completely drain the source, there will still be current on other paths. An amp uses a shunt to provide feedback, if it diverted ALL current than the amp would provide no power. You could use a shunt to lower the current to the point where it approaches zero, but until applied and circuit power completely drains, it will never reach zero. quote:
Originally posted by Rolo
Electricity does take low-resistance paths, including the one of least resistance. But it also takes every other path available to it.
Does anyone else find it amusing that I am left defending Rolo's point against Rolo?
Resistance may be futile, but an exercise in futility is still good exercise.
Last edited by El Presidente on Sun Apr 23, 2006 7:19 pm; edited 1 time in total |
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Sun Apr 23, 2006 7:08 pm |
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Rolo
Yo' Daddy
Cash: $ 309.70
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Location: Colorado/Florida
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quote:
Originally posted by coaster
Haven't you guys got lawns to mow or something?
Grass grows in the path of least resistance.
"Expect me when you see me."
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Sun Apr 23, 2006 8:11 pm |
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Safora
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Cash: $ 13.80
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Joined: 13 Apr 2006
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Oh, God this will never end. Makes sticking your finger in a light-socket seem like a quicker and less painful way to learn about electricity.
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Sun Apr 23, 2006 8:16 pm |
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Rolo
Yo' Daddy
Cash: $ 309.70
Posts: 1551
Joined: 13 Mar 2005
Location: Colorado/Florida
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quote:
Originally posted by Safora
sticking your finger in a light-socket seem like a quicker and less painful way to learn about electricity.
Why don't you go do that and tell us if that were least resistance or no resistance! 
"Expect me when you see me."
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Sun Apr 23, 2006 8:22 pm |
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Rolo
Yo' Daddy
Cash: $ 309.70
Posts: 1551
Joined: 13 Mar 2005
Location: Colorado/Florida
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Sweetie!
(heh, forgot to preface that with The Word Of Immunity)
"Expect me when you see me."
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Sun Apr 23, 2006 8:22 pm |
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Safora
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Joined: 13 Apr 2006
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Sun Apr 23, 2006 9:31 pm |
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