Voltage flow through a coil

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This seems to be getting circular and a little confusing. :grin:

I said that current flows, and you disagreed with me, right? That was what started this nit-picking (which I am enjoying, by the way :grin: ). Where do we stand on that now?
 
micromind said:
An engineer can explain this a lot better than I can, (please correct me if I'm wrong) but if you connect only one half of the input side, you'll have slightly less than 1/2 of the KVA rating. (This has to do with the winding versus iron ratio). If you connect only one half of the output side, you'll have slightly more than 1/2 of the KVA rating. (This has to do with heat dissipation).
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This engineer says that 'slightly' in this case can be read as 'so little as to be completely and totally insignificant', so don't worry about it. :grin:
 
drbond24 said:
This seems to be getting circular and a little confusing. :grin:

I said that current flows, and you disagreed with me, right? That was what started this nit-picking (which I am enjoying, by the way :grin: ). Where do we stand on that now?
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Same as ever. "Current" is the flow. The electrons flow; otherwise we would have no current.
 
bcorbin said:
Exactly. It's like saying speed moves. Speed doesn't move. Speed is the measure of how fast you are moving.

This was actually one of the first little quizzes I gave my first semester circuits class. We established that strictly speaking, traditional current is measured as the rate of flow of positive charge. This was a real eye-opener to some of the students.
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"Speed" is the change in position, "accelleration" is the change in speed.

So, in a way, "speed" moves the same as the thing in question, it's just called something else ...

And apropros the comments about "current" moving, the change in current with respect to time (di/dt) is very important in this AC biz ...
 
tallgirl said:
"Speed" is the change in position, "accelleration" is the change in speed.

So, in a way, "speed" moves the same as the thing in question, it's just called something else ...

And apropros the comments about "current" moving, the change in current with respect to time (di/dt) is very important in this AC biz ...
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But di/dt is not a change in position. We don't "move" from one speed to another", or even from one acceleration to another. I agree the conceptual math works, but the units (and the syntax) are all wrong.
 
bcorbin said:
But di/dt is not a change in position. We don't "move" from one speed to another", or even from one acceleration to another. I agree the conceptual math works, but the units (and the syntax) are all wrong.
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It was just a way for me to say that the current had better change or else there's no AC. There's more to AC than dE/dt -- there's also the matter of dI/dt.
 
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