SIGforum
Today's Science Quiz
August 07, 2020, 10:26 PM
kkinaToday's Science Quiz
Let's define <B>electrical current</B> as the flow of electrons (there are more complex theories, but in the interest of keeping things simple). Referring to the simple DC circuit diagram below:<BR><BR><IMG class="inline_image" SRC="https://cdn.goconqr.com/uploads/media/image/18743686/desktop_1cb38397-7cbd-477c-ab8e-459265d9ff24.png"> What direction is the electricity flowing?From the positive terminal to the negative terminal.From the negative terminal to the positive terminal.By convention, electrical diagrams are always depicted with the flow as clockwise.By convention, electrical diagrams are always depicted with the flow as counter-clockwise.It depends which hemisphere you're in.
August 07, 2020, 11:15 PM
sigmonkeyIf the charge of your material that is conducting is positive, then the flow of electron is the same as the current flow. If your the charge of the material that is conducting is negative, then the current flow will be opposite direction.
Unless you are traveling faster than the speed of light and turn your headlights on, then the elephants will be banging tambourines on the dark-side of the moon, but no one in the forest can hear the trees scream.
I think.
But I need to review my notes...
Put me down for the sixth choice and I'll get back to you.
And never lick the posts of a car battery to see if it is "good".
"the meaning of life, is to give life meaning" ✡ Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא שוב! August 07, 2020, 11:27 PM
Scoutmasterquote:
Originally posted by sigmonkey:. . . And never lick the posts of a car battery to see if it is "good".
Don't grab the black and white wires with your hands when standing barefoot in a puddle of water.
"Liberty lies in the hearts of men and women. When it dies there, no constitution, no law, no court can save it....While it lies there, it needs no constitution, no law, no court to save it"
- Judge Learned Hand, May 1944 August 07, 2020, 11:34 PM
jaaron11None of the above. Electrons don’t actually flow as typically described. Rather, they help transmit the electromotive force.
J
Rak Chazak Amats August 07, 2020, 11:45 PM
kkinaquote:
Originally posted by jaaron11:
None of the above. Electrons don’t actually flow as typically described. Rather, they help transmit the electromotive force.
That's one of the "complex theories" I was hoping to avoid.

August 07, 2020, 11:50 PM
parabellumProbably just needs a fresh battery.
August 08, 2020, 12:02 AM
Some ShotNegative to positive, except inside of the battery where it is positive to negative. Unless you learned electronics in the Navy.
August 08, 2020, 12:58 AM
OKCGeneI have inconvenienced many many electrons to do things I wished done and they have done as I expected in a quick and efficient manner without complaint or issue.
Based on that compliance and performance I’ve never questioned how they got it done nor have I cared.
I’m guess I’m spoiled.
August 08, 2020, 04:54 AM
4MUL8RI was taught that the current was actually the holes that the electrons live in moving. I'm not sure that makes any more sense than the electrons moving themselves.
But, since diodes exist, and diodes work, current must have a direction. If you wouldn't mind, add a diode to your circuit and then I can tell you the direction.
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Trying to simplify my life...
August 08, 2020, 05:01 AM
kkinaOh, no no no...you splice in the diode, and I'll tell you if you got the direction right.

August 08, 2020, 05:59 AM
trapper189Ben Franklin didn't know what an electron is.
August 08, 2020, 06:00 AM
tacfoleyI'm reminded that here in UK, Lucas, AKA 'Prince of Darkness' discovered that electricity in wiring takes the form of black smoke, that leaks out of it when anything goes wrong.
August 08, 2020, 06:06 AM
mark123When you say "electrons" do you really mean the angry pixies that live in the batteria?
August 08, 2020, 06:46 AM
kkinaquote:
Originally posted by tacfoley:
I'm reminded that here in UK, Lucas, AKA 'Prince of Darkness' discovered that electricity in wiring takes the form of black smoke, that leaks out of it when anything goes wrong.
We know Lucas. My first car was a Triumph.
August 08, 2020, 07:09 AM
.38supersigI'm positive that is is from the negative.
August 08, 2020, 07:18 AM
Sig2340In what dimension is the circuit?
What universe in that dimension?
Which galaxy?
Which solar system?
Which planet?
Which hemisphere?
Which continent?
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. Yes, I’m stalling for time because I haven’t a clue, other than to say it it’s in a 1960s British car it matters not because those things rarely worked.
Nice is overrated
"It's every freedom-loving individual's duty to lie to the government."
Airsoftguy, June 29, 2018
August 08, 2020, 07:49 AM
khoI have no idea, But I'm going to keep an ion this thread.
August 08, 2020, 07:52 AM
braillediverOpposite of the holes.
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The butcher with the sharpest knife has the warmest heart.
August 08, 2020, 07:53 AM
ShaqlIf your diagram is conventional, then it flows from pos to neg. If your diagram shows electron flow, then neg to pos.
Inserting a diode changes nothing as long as you define what type of diagram you're creating.
And lastly, Jaaron11 is correct in that they actually just transmit the energy, but the force does create a flow.
Hedley Lamarr: Wait, wait, wait. I'm unarmed.
Bart: Alright, we'll settle this like men, with our fists.
Hedley Lamarr: Sorry, I just remembered . . . I am armed.
August 08, 2020, 09:54 AM
Fla. JimWell having learned the hard way "not" to "ever" take anyone's word about a breaker being off!! (I had this experience. It was summer S. Fla was inside a friends back yard pump enclosure was sweating appropriately. I was replacing his water pump electric plug when I became the link between the one hand holding 110v and the other hand on the metal pump housing which was attached to a 2" metal water intake going deep into the ground. I am here to tell you after the oh so brief thought flashed I was going to die as I could not turn loose. The current seemed to alternate directions, in waves so intense as to be describable.}
I'm in the alternating current going both ways camp!
DC not sure. Early training with my mechanic Dad shorting spark plug wires to car grounds for laughs, only left me feeling hollow.