californiaHank
Well-known member
- Joined
- Nov 20, 2015
- Messages
- 487
Your teacher just knew more physics than he could explain to a bunch of high school students. Although it's convenient for some practical purposes to think of electrical current flow as a stream of electrons, it's not the way things actually work. It's electromagnetic waves moving down the wire, not electrons. Electrical energy moves along a conductor at the speed of light. Electrons in a wire move much, much slower than that.So the holes were required for conventional current flow, when we switched everything to electron flow they were no longer required but they are still there as we expect them to be there...
BTW, I had an old electrical teacher way back in high school and he would always say that he has to teach electron flow but he did not believe in it...