No, he is correct, its the wave that propagates at a fraction of the speed of light (depending on the conductor). The electrons themselves don't move very fast.

No, he is correct, its the wave that propagates at a fraction of the speed of light (depending on the conductor). The electrons themselves don't move very fast. "An electron travels at a speed of about 1 cm/sec. " (in copper) per: https://www.informit.com/articles/article.aspx?p=2916283&seqNum=4 https://www.informit.com/articles/article.aspx?p=2916283&seq... This should be taught in a basic AP physics class in HS (where i initially heard it). I vaguely remember doing some of these calculations in my physics for engineers class as a first year engineering student too.