Electric Current Direction
If Mr. A says to Mr. B that he will give “minus 100 dollars” to Mr. B, the value will flow from Mr. B to Mr. A. Between the conventional electric current direction and the current direction of electrons, there is no contradiction. Because electrons are fortunately signed as a minus value. Therefore, between the very slow electrons’ current and the very fast electric current, there is no contradiction.
As electron holes in transistors, lacks of electrons dominate the electric current, electric current can be expressed as the advance of lacks. Like in traffic congestion, where lacks of cars go backward. If there is no lack, cars cannot go forward. Lacks are pulling cars.
Electric current can be imagined as a wave of lacks, which go in opposite direction of electrons, therefore, it is a current of positive value, + . Electron holes dominate the electrons movement. The speed of electric current must be very fast. Don’t confuse the electric current with the eletronic current, i. e., the electric speed with the electronic speed.
Often people say that nichrome wires get hot by a kind of friction of electrons in the wire. It is just because those people want to teach you something, as ignoring the mystery of electromagnetism. Electric energy is charge; the quantity of the potential difference between two or more parts of thing. The movement of electrons is not the movement of charge. You must think of the speed of electrons and the speed of electricity.
electric current direction