In article xPMGe.110096$wr.102342@clgrps12, JoeSixPack wrote:

Before you attack this post, saying electrons can only travel at the speed
of light, that's incorrect. The electrons themselves can travel any speed,
but the voltage wave produced does travel at 300,000 kms per second.

electrons cannot exceed the speed of light in a vacuum. no physical object can.

That said the drift velocity of electrons in electric wires is rarely
more than walking speed, the signals are transmitted by the interaction
of the electrons electric fields - ie each electron pushes on its neighbours...

signals usually seem to propogate through coaxial conductors at 2/3 the
speed of light. iirc they travel no faster in any other type of conductor.

Even in fibreoptic cables the signals (photons) go slower than 300000 km/s
the ratio difference is the definition of the refractive index of the optic
material.

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Bye.
Jasen