>>14006376>>14006391He makes incorrect assumptions.
There is no electric field in a perfect conductor like a wire, and even if you assume some tiny resistance the field pointing along the wire is very small compared to the field perpendicular to the wire. But he assumes the electric field runs along the wire which is wrong.
If you do it correctly the magnetic field circulates around the wires like he has, and the electric field is perpendicular, and the Poynting vector points along the wires straight to the lightbulb/resistor (on both sides of the circuit). The magnitude of the Poynting vector is maximum right outside the surface of the wire and decays like 1/r^2 as you go away.
So he was right to say there is no energy flow literally inside the conductor, but his overall picture of what is happening (including the animation he made) was wrong
