> Fun fact: electrons in an metallic wire under a potential difference move only in the order of mm/s. Your link says otherwise, when you read down into the co

> Fun fact: electrons in an metallic wire under a potential difference move only in the order of mm/s. Your link says otherwise, when you read down into the comments... Basically, only a few atoms are able to "conduct" an electron in a wire... Mostly the ones near the surface. And in turn, the true speed of the electrons traveling throught a wire in DC is in the m/s range, not mm/s.