Electricity 1A

[hannibal]

So how deep can I dig a well?

Half way. After that, you're digging up a new well.

[RichDesmond]

The most important thing about electricity is.... DON'T LET THE SMOKE OUT OF THE WIRES!!!

[Steve]

DON'T LET THE SMOKE OUT OF THE WIRES!!!

There is good news, Rich, especially if you have a British vehicle.

Click HERE.

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[RichDesmond]

There is good news, Rich, especially if you have a British vehicle.

Click HERE.

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LOL, that's some funny stuff there....

[Brendan W]

So how deep can I dig a well?

Are we talking real well or potential well ?

[Blue Falcon]

at least it's not the "hole flow" theory....Jesus... talk about arguing with your instructors over that one. Dumbest dammed electrical theory ever, I fully understand the concept however, you are not going to convince me that "holes" flow, isotopic construction inside an electrical conductor. Don't get me started on that one as mathematically if both theories were true, it would cause a head pressure and congestion worse than an LA traffic jam at rush hour. How does electricity flow AC or DC you ask... its PFM, motors run on smoke. There is no proof is the answer, only theories. Just know you need a current carrying conductor, relative motion and a magnetic field to make it. In DC, its like a 1 way street, in AC it's a two way street, when it goes one way...get out of the way unless its rectified. I do like your pics posplayr. I used to give the slower sailors a lesson in electricity using a water hose analogy. Personally, I like the direction electron excitation is going for theory.

[Brendan W]

I sometimes say that holes are like one empty seat at a football game at the edge of the stand.
It marks a local charge. If a person moves into the empty seat and their newly empty seat is replaced by another person and so on across the full width of the stand the result will be the movement of that charge to the other end.
If the spectators are uniformly drab but the seats are dayglo yellow, from a distance we see a yellow dot cross the stand.
On another day I will say, Heaven preserve me from analogies!
Why does a spring stretch and return ?
The molecular bonds are stressed and remember they are like springs!
wtf?

[posplayr]

at least it's not the "hole flow" theory....Jesus... talk about arguing with your instructors over that one. Dumbest dammed electrical theory ever, I fully understand the concept however, you are not going to convince me that "holes" flow, isotopic construction inside an electrical conductor. Don't get me started on that one as mathematically if both theories were true, it would cause a head pressure and congestion worse than an LA traffic jam at rush hour. How does electricity flow AC or DC you ask... its PFM, motors run on smoke. There is no proof is the answer, only theories. Just know you need a current carrying conductor, relative motion and a magnetic field to make it. In DC, its like a 1 way street, in AC it's a two way street, when it goes one way...get out of the way unless its rectified. I do like your pics posplayr. I used to give the slower sailors a lesson in electricity using a water hose analogy. Personally, I like the direction electron excitation is going for theory.

I see a whole lot of holes in that argument.
it would be amazing if what every sophomore EE is taught about electron and conventional current flow is really a cover story . You think the holes are where they keep the smoke? Maybe it is all PFM; where is my voodoo doll?

[posplayr]

I sometimes say that holes are like one empty seat at a football game at the edge of the stand.
It marks a local charge. If a person moves into the empty seat and their newly empty seat is replaced by another person and so on across the full width of the stand the result will be the movement of that charge to the other end.
If the spectators are uniformly drab but the seats are dayglo yellow, from a distance we see a yellow dot cross the stand.
On another day I will say, Heaven preserve me from analogies!
Why does a spring stretch and return ?
The molecular bonds are stressed and remember they are like springs!
wtf?

hope springs eternal that we can explain things in simple analogous terms. As we contemplate your rebounding spring due to its spring properties, the circuitous logic has given deep incite and perhaps leads us to a fundamental discovery. The spring probably also has holes with PFM smoke ! It all makes perfect sense now(in an analogous way of course)

[dorkburger]

I dug this up from the work van. In HVAC apprentice school we got the basics and in the ensuing 17 years there has been an ocassional smoke-letting, but I now know enough to troubleshoot / repair equipment fairly well - I'd say I'm above "knowing enough to be dangerous". I still find troubleshooting control circuits ocassionally frustrating.

[Gorminrider]

"Holes" are ok but the word alone doesn't express the "need" (potential) of an electron to fill them.
Electrons "Push" (and are pushed like that cool ball bearing picture) from negative ("like" charges repel).... but maybe it predicates that there must be a hole ahead to fill.

It's like those rush hour drivers; that if they see a space ahead of you, they MUST fill it. Explaining their compulsion is difficult . Why do like charges repel? it's just a fact, I guess...barring the desriptions of electron shells (ie conductors,ions etc.)

For a "hole" idea, maybe that picture maybe needs a missing ball-bearing....to suit a "hole" analogy. But is easier and simpler- it works as well without it.

[Brendan W]

" Why do like charges repel? it's just a fact, I guess...

Indeed. Is it like when two ladies turn up to the ball wearing the same dress?

[RichDesmond]

at least it's not the "hole flow" theory....Jesus... talk about arguing with your instructors over that one. Dumbest dammed electrical theory ever, I fully understand the concept however, you are not going to convince me that "holes" flow, isotopic construction inside an electrical conductor. Don't get me started on that one as mathematically if both theories were true, it would cause a head pressure and congestion worse than an LA traffic jam at rush hour. How does electricity flow AC or DC you ask... its PFM, motors run on smoke. There is no proof is the answer, only theories. Just know you need a current carrying conductor, relative motion and a magnetic field to make it. In DC, its like a 1 way street, in AC it's a two way street, when it goes one way...get out of the way unless its rectified. I do like your pics posplayr. I used to give the slower sailors a lesson in electricity using a water hose analogy. Personally, I like the direction electron excitation is going for theory.

Holes...electrons..they're both just abstractions of a physical reality we only dimly understand. My attitude is, whatever makes the math easier and more intuitive.