The big misconception about electricity
 

Another fascinating video by Veritasium

https://youtu.be/bHIhgxav9LY

And a follow up…with experiment

https://youtu.be/oI_X2cMHNe0

Excellent!

Outstanding!

Great video. Now I know the theory behind the decoupling of my speaker cables from the floor eh.

Of course, now the question becomes - how does this change how we setup our rooms?

That was interesting and clearly way over my head for the largest part.

If the power is in the field around the wire, then what is the point in using shielded cabling for anything. The electrical fields from every inch of wire in the room would be creating an intertwined field of electricity.

It would seem if shielding would prevent this they would have mentioned it.

I also realize that was not the point of the video though.

Any help understanding this would be welcome.

A case of getting what you pay for. And why electrical engineering was invented (putting practical sense into the physics).

He is right - a changing electric field creates a changing magnetic field and vice versa. But he then tries to apply that to a steady-state case - dc current flowing in a conductor. Not incorrect, but difficult and needs a lot of math to understand the scales. EE is much simpler to get the same answers.

It isn't clear what you mean here. An audio signal is an AC signal, so the electric field is always changing.

Yes, that is correct.
But even at 20kHz AC, the wavelength is 15,000 meters, or about 10 miles. So, he needs a lot more math and numbers to make his method explain what is happening.

The video is correct that the energy flow occurs in the fields immediately around the wire, energy transmission is extremely fast (why the light bulb turns on quickly) and that current flow is inside the wire, and the individual electrons just jiggle in place, but, as presented you may draw an erroneous conclusion.