5 ms·
https://en.wikipedia.org/wiki/Electromagnetic_radiation https://en.wikipedia.org/wiki/Electromagnetic_radiation "In a vacuum, electromagnetic waves travel at t
by sightbroke 2y ago
https://en.wikipedia.org/wiki/Electromagnetic_radiation https://en.wikipedia.org/wiki/Electromagnetic_radiation
"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.
- mr_toad 2y agoYes, essentially. The perturbation of the electrical field causes EM radiation (radio), which moves at the speed of light.
- tsimionescu 2y agoIt 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).
- B1FF_PSUVM 2y agoCorrect, you're detecting electromagnetic fields in the same medium.