I've recently gotten into electrodynamics, I've studied electrostatics & magnetostatics, so far I know these facts:
Electrostatic fields are produced by static charge configurations Magnetic fields are produced by moving charge configurations (currents)
Now there is something that I cannot understand, for example, a wire carrying current that is supposed to be neutral, but according to this statement:
There is an electric field inside the wire, which I know there must be, to actually drive current through the wire, but the wire is neutral, meaning it is not charged, so where does that electric field come from? Does it come from the source (battery)? And is at an electrostatic one, or does it come from a somehow induced charge within the wire, it could be the battery and that would easily answer the question. But what about the electric field outside the wire? Is it also due to the battery?