How Electron Flow Occurs in Electronic Circuits

Video Transcript

Hello! This is Ross on behalf of the expertvillage.com. We are all outside because all basic electronics start with a great water analogy. This garden hose represents a piece of copper wire. Copper wire is an excellent conductor for electrons. That's what we're talking about electron flow here, I have a model of an atom. Now you are probably familiar with atoms. This one is into scale as a matter of fact atoms are still small and you cannot see even them. Also this being a copper atom, is not configured correctly because this being in the middle, the protons, the neutrons, the outside shells or orbits if you will there are four of them 1, 2, 3 and 4. There are 29 electrons total. So it is not quite perfect. Use your imagination if you will. What happens in the copper electron because the outside only has one electron orbiting, it is very easily knocked away, later Pluto. So anyhow as it moves off because of the voltage, the pressure, the push, the electromotive force, it goes down the wire. The greater the push, the more electrons are freed off and they move. Now the garden hose, same idea, there is no water flowing out of it right now, no not yet. There is no water flowing out of it yet because there is no pressure applied to it. A spicate, which will be like a switch, you will like switch it to turn on and off, that spicate is off right now. No water flows. Turn the spicate on and there is pressure already behind that hose ready to flow and that flows and it goes down. So with the spicate off, there is no flow with a turned on though... with electronics the pressure is created with voltage.

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