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"Veritasium" (YT) - "The Big Misconception About Electricity" ?

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bsfeechannel:

--- Quote from: EEVblog on January 14, 2022, 11:47:59 pm ---You guys don't seem to like it because it seems to predict contrary to what Poynting and classical theory predicts. All of you were all gung-ho beating everyone with a Poynting stick until QTF was brought up. Now it seems like the eyes are darting around, because maybe, just maybe, you might have been trumped.
And even Sredni is posting his own references that say "hmm, maybe it's not quite right/complete".

--- End quote ---

That's not what we, whoever the "we" are, feeling (dislike).

For macroscopic events like the one proposed by Derek's thought experiment, Quantum and Classical ED converge. So what the "QFT" professor said tells only part of the story. She says she's not a specialist on the subject. So we need the complete picture if you're going down that rabbit hole.

bsfeechannel:

--- Quote from: Naej on January 15, 2022, 12:15:55 am ---Now you're saying that energy flows from the primary to the secondary. Did you compute Poynting's vector? What is the result ?
Here's a McDonald quote: "This problem was posed by Siegman [1], which led to several conflicting responses [2, 3, 4, 5], all of which seem somewhat misguided". So don't look in McDonald's paper nor in Carpenter's and tell us.

--- End quote ---

I read McDonald's article long ago. I didn't see anything problematic with it. In fact he shows the misconception (the responses [2, 3, 4, 5]) that the energy has to flow inside the transformer when it in fact flows around it.


--- Quote from: Naej on January 15, 2022, 01:16:17 am ---he knows that energy flows in the wires, he just doesn't find it convenient.

--- End quote ---

As inconvenient as considering the earth flat. T'works for short distances. Fails in the long haul.

EEVblog:

--- Quote from: Naej on January 14, 2022, 11:52:38 pm ---
--- Quote from: EEVblog on January 14, 2022, 11:37:07 pm ---Once again, the fundmental question being asked here is whether or not energy flows inside or outside the wire.

--- End quote ---
Just to be clear: this is not a question which can be settled with experimental evidence (unlike what Stratton said or implied).

--- End quote ---

That's what I suspect.

EEVblog:

--- Quote from: bsfeechannel on January 15, 2022, 02:54:51 am ---
--- Quote from: EEVblog on January 14, 2022, 11:47:59 pm ---For macroscopic events like the one proposed by Derek's thought experiment, Quantum and Classical ED converge. So what the "QFT" professor said tells only part of the story. She says she's not a specialist on the subject. So we need the complete picture if you're going down that rabbit hole.

--- End quote ---

--- End quote ---

I didn't suggest she was a major authority on this, she was just the first AFAIK to raise a QTF response to this.
As it turns out though, it seems she has published a book involving QFT
https://www.amazon.com.au/Quantum-Space-Time-Dynamics-Hontas-Farmer/dp/0578007320


And published a few things: https://www.researchgate.net/profile/Hontas-Farmer

It never occured to me that QFT might apply to this, I thought Poynting was the best explanation we had, and that the energy must flow outside the wire, but it seems I might have been wrong.

bsfeechannel:

--- Quote from: EEVblog on January 15, 2022, 04:30:29 am ---As it turns out though, it seems she has published a book involving QFT
https://www.amazon.com.au/Quantum-Space-Time-Dynamics-Hontas-Farmer/dp/0578007320

--- End quote ---

It is important to notice that QED (Quantum Electrodynamics) is one of the fields (pun intended) of QFT. She's a specialist in a different area: the gravitational field. For us, electronics engineers, QED is what interests us. That's why it is important to look for the insights of someone specialized in QED.

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