Veritasium Is Probably Still Wrong About Electricity, By His Own standards.

#Physics #veritasium #quantumfieldtheory

[EEVblog]

Do you know if there has even been any experimental results confirming that energy (probabalistically) mostly flows *within* a conductor?
If not, do you think it's possible to actually do such an experiment? I'd imagine it would be Nobel winning stuff if experimentally proven that energy flows mostly in the conductor, as that completely trumps Poynting.
I found it hard to find any research on this at all.

[dixztube]

That video confused me so much. I’m not a physicist but enjoy YouTube / book science and so thanks for this video.

[wilf]

Hi Hontas Farmer, you did not go into the mechanics of how the current developed in the light bulb, but Veritasium did. Moreover, his main point was that energy flowed through the intervening space and not through the wires. On these two accounts, it appears he was more fully right about Maxwell's equations than you are partially right about QED

[sinank]

I don't know QED, I have a background in microwave/RF engineering, here is what I think he missed:

He should have shown the current propagating down 1 conductor and show the capacitive coupling and the inductive coupling. What effect does that have on the 2nd conductor at the load?
It will induce currents/charge densities that propagate. He should have quantitatively shown the amount of current that it induces and the resulting energy delivered to the load. How does this change when the 1m separation changes?

[copernicofelinis]

does your QED interpretation of the phenomenon take into account surface charges? There is experimental evidence of their existence, and they are the reason there is a small electric field along the wire and a much stronger electric field inside a resistor. They are near to where the energy is dissipated. How does QED include their effect, or even presence?

[davidrandell]

“The Final Theory: Rethinking Our Scientific Legacy “, Mark McCutcheon- electrical engineer- for proper physics. When will we learn.

[laytonskilton]

In his statement at 13:24 "The bulb will not illuminated regardless if the circuit is complete or not". I believe this is incorrect. Hear me out.
Technically the globe will "illuminate".. as in how you explained Hontas(If enough electricity is supplied. But in his depiction the circuit is open. The battery circuit needs to be completed or no electrons will flow. Where is the load in the broken circuit? Electrons are not flowing so the globe can not illuminate.

I don't believe the magnetic field causes the electrons to flow as he states. I believe the electrons flowing create the magnetic field. And then the magnetic field generates electricity in the other wire. What are your thoughts?

[marcfruchtman]

With respect, he is clearly trying to claim that electrons are "passengers" / bystanders and the fields are doing all the work. The reality is that the moving electrons are the (source) for the fields, and that the strength of the field is inversely proportional to the square of the distance (tho we do have adjust slightly for the effect of the conductor). The fact is that, there will be some voltage induced in the wire (copper pipe) 1 meter away but the amount of energy delivered is minuscule... 5 volts and 0.0028 amperes according to calculations based on the power he quotes to the Resistor.
I think it is very important to enlighten people about that method whether it is called Transmission Theory / Inductive Effect / Capacitive Effect / Antenna Theory etc...
However, he is clearly overstepping because he is also claiming that this "Transmission Theory" is the primary method of power delivery, and is the explanation for how power is delivered to one's house to run appliances. This is patently wrong.
The amount of power delivered by the Transmission Theory is minuscule as you mention in the video because of the Inverse Square Law.
The reason the voltage goes from 5 volts to 20 volts is because the electrons finally arrive.
The moving electrons are responsible for generating the electric field which is strongest proximal to the electron.
Please note, that it is not correct to say that current (electrons) "doesn't go around in a circuit." -- of course it does, well if you wait long enough it will. I suppose if you are being very technical with a battery, the electron will basically make "1 lap" and stop at the other electrode. So, I am not really sure why you say they don't "go around", unless you mean they just travel 1 time around in the circuit, if you power it long enough.