- #1

nomadreid

Gold Member

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## Main Question or Discussion Point

It is said (hopefully no need to give references for such a common statement) that the electromagnetic field of a given charged particle is infinite in range (albeit converging to zero as the distance goes to infinity). However, given that charged particles apparently did not exist at the beginning of the expansion of the universe, and that the electric field expands at the speed of light modulo being carried along by the expansion, that the field would be finite? (I am assuming the universe having started out as already very large, possibly infinite.)