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[–] 41 points 9 months ago (4 children)

Whats crazier is that in direct current individual electrons don't travel at the speed of light through the conductor, but only at roughly 1cm/s.

Or, that thanks to the "skin effect" the current actualy travels in a very thin layer below the outside surface of cconductor. Most of the conductor doesn't transfer power but only maintains the magnetic field to keep the current flowing.

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  • [–] -4 points 9 months ago (2 children)

    That's why you don't have one thick copper cable but multiple thin ones.

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