So a generator is magnets and copper coil yeah? They make electricity and electricity is moving electrons. Power generators and electric stations are kilometres away. Do the copper coils get their electrons back?
Won’t the copper coil run out of electrons. How the electrons come back (if they do)?
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Imagine water. When you open the tap it’s not water from the reservoir coming all the way, but that water helps push everything else along the way so that the water close to you goes out. Same thing for electricity but nothing is spilled, it circulates all the way back. And if you have AC it goes back and forth.
Now it is possible to “spill” electrons but it’s a completely different thing, our power grid is a closed system where that is negligible.
About “depleting electrons” yes that is possible! Radiation can strip off electrons and it can be a problem for spaceships. It doesn’t go as far as having no more electrons but missing a bunch already causes issues.
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