Yes, essentially.
The perturbation of the electrical field causes EM radiation (radio), which moves at the speed of light.
Re:But good sir, what is electricity?
by tsimionescu on Monday February 24, 2025 @02:13AM
(#43156641)
It moves at the same speed as light (it is light), but not at the "speed of light" (c). Light/EM waves move slower than c in air (and much slower than c in a copper wire).
Re:But good sir, what is electricity?
by B1FF_PSUVM on Sunday February 23, 2025 @04:52PM
(#43153567)
Correct, you're detecting electromagnetic fields in the same medium.
"In a vacuum, electromagnetic waves travel at the speed of light, commonly denoted c."
I would expect that in air, that the photon from the light source and the perturbance of the electric field from the charge to reach the detector at the same time.