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Offline Lord Dave

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Electricity video - how most people are wrong.
« on: December 08, 2022, 09:13:03 PM »
Summary: electrons don't move in a wire,  its the electric fields that send the power.

https://fb.watch/hi38hqycbj/

I thought it was neat.
If you are going to DebOOonK an expert then you have to at least provide a source with credentials of equal or greater relevance. Even then, it merely shows that some experts disagree with each other.

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Offline Tom Bishop

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Re: Electricity video - how most people are wrong.
« Reply #1 on: December 09, 2022, 12:52:07 AM »
I have seen this rediculous piece. He does not provide any evidence at all that the field is jumping the gap and not following the wires.

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Offline Lord Dave

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Re: Electricity video - how most people are wrong.
« Reply #2 on: December 09, 2022, 07:54:41 AM »
I have seen this rediculous piece. He does not provide any evidence at all that the field is jumping the gap and not following the wires.

He does.
The undersea telegraph cable story.

Also math.

Also also, he does say it follows the wires in typical home situations because field lines from the power plant to your home?  Yeah no.
If you are going to DebOOonK an expert then you have to at least provide a source with credentials of equal or greater relevance. Even then, it merely shows that some experts disagree with each other.

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Offline Tom Bishop

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Re: Electricity video - how most people are wrong.
« Reply #3 on: December 10, 2022, 02:51:01 AM »
I have seen this rediculous piece. He does not provide any evidence at all that the field is jumping the gap and not following the wires.

He does.
The undersea telegraph cable story.

Also math.

Also also, he does say it follows the wires in typical home situations because field lines from the power plant to your home?  Yeah no.

The undersea cable story is supposed to be example that there is an electromagnetic field around the wires, but that doesn't mean the field is jumping the gap and traveling directly between the battery and the lightbulb in this setup:



Maybe he means in a trivial sense that the there might hypothetically be a few particle exchanges, in the sense that electromagnetic fields are not definitely finite like the theory that the gravity of a soda can is affecting Pluto. But the bulk of the path is going along the wires.
« Last Edit: December 10, 2022, 10:59:02 AM by Tom Bishop »

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Offline Lord Dave

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Re: Electricity video - how most people are wrong.
« Reply #4 on: December 10, 2022, 11:36:04 AM »
I have seen this rediculous piece. He does not provide any evidence at all that the field is jumping the gap and not following the wires.

He does.
The undersea telegraph cable story.

Also math.

Also also, he does say it follows the wires in typical home situations because field lines from the power plant to your home?  Yeah no.

The undersea cable story is supposed to be example that there is an electromagnetic field around the wires, but that doesn't mean the field is jumping the gap and traveling directly between the battery and the lightbulb in this setup:



Maybe he means in a trivial sense that the there might hypothetically be a few particle exchanges, in the sense that electromagnetic fields are not definitely finite like the theory that the gravity of a soda can is affecting Pluto. But the bulk of the path is going along the wires.

Could be.
But it should be easy to test by setting up a battery, bulb, and very long wires then measuring the E field between the battery and bulb.
If you are going to DebOOonK an expert then you have to at least provide a source with credentials of equal or greater relevance. Even then, it merely shows that some experts disagree with each other.

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Offline BillO

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Re: Electricity video - how most people are wrong.
« Reply #5 on: January 27, 2023, 03:50:58 AM »
He does not provide any evidence at all that the field is jumping the gap and not following the wires.
Well, it simply does.  As the field builds on one wire it will quickly (at the speed of light) envelope the other wire, putting that wire into a increasing magnetic field.  This will, of course, induce a current in that wire.  This current will be (and depending on the separation of the wires) be much smaller than the current induced into the drift velocity of the free electrons within the wire but it will be induced very shortly after the circuit is made.  Some time later the increase in the free electron drift velocity will make the trip and add to the induced current.  Both mechanisms are at play.

If one used a sensitive ammeter instead of a big (useless) bulb one would see a small current induced within (depending on a reasonably small wire separation distance) a few picoseconds, then some time later (depending on the loop length and the velocity factor of the conductor) a much larger current added due to electron drift.  Veratasium overstated the induction effect.  He has been dragged through the fence on this.
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