Okay, welcome back. This is electronic basics part three of Al's electronic classroom. And in this section, we're going to talk about hole flow. As current flow previously we spoke about electron flow. One of the things that I want to mention here is as far as current flow, the calculations are the same. All right, ohms lar is the same.

The only difference is either we're talking about electron flow or electrons flow from the plus terminal in our, in our example the battery to the positive terminal of the battery. Okay, when we talk whole flow, we're talking about deficiencies of electrons and they appear to flow from the positive terminal the battery to the negative terminal. of the battery and you'll see we're going to demonstrate that the next slide. So let's stop here, go to the next slide. Okay, this slide should look familiar. We used it in the last lecture.

So as far as whole flow is concerned, right there, everything stays the same. And let me let me review that. All right, on the negative terminal of the battery, we still have a surplus of electrons and on the positive terminal of the battery, we have a shortage. So therefore, my battery and I'm going up here my battery has is it has a positive so I put many plus signs up there. Alright, so now his the actions of saying The philosophy or the explanation is a tad different. Alright, so we know that when we close the switch when we close the switch, we got my filament resistance in my lamp.

And All right, so now here's my copper atom. We still know that we have one valence electron in the outer shell, that does not change. Alright, so now, as these electrons try to get to the positive terminal, the battery, what do they do? They knock the valance electrons off the outer shell at the instance, that they knock the valance electron out of its out a shell We have a whole meaning for very, very my new, less than 1,000,000,000th of a second. When these electrons bombard the valence electrons in my copper conductor, they knock it out and there's a hole there for for like I said a billionth of a second. All right?

If I look at that, right, it appears that because there's a whole flow, the holes are going from plus, to minus and I'll call that whole movement. All right, I didn't get the key in there. But that's movement right there. All right. So the movement appears to go from the positive terminal, the battery to the negative terminal the battery. All right?

When we talk about electron flow, and whole flow, when we analyze a circuit, we use one. And in my courses, and in my lectures, I'm going to talk about electron flow. All right? You don't switch. You don't say okay, on this part of the circuit, I'll use whole flow and the other part I'll use electron, no, you use one convention. One convention, all right.

The formulas for ohms law will stay the same. Nothing will change When I get my answer for current, it'll be measured in amps or ampere is that's the fancy name, amps. And that's ampere. And we'll get into that a little bit more actually, after this one, I'm doing a, a, a presentation on voltage, current and resistance and we go into this a little bit deeper than we are doing it here. So everything stays the same. It just the convention of how the electrons move.

If we're talking about electron flow, we're going from minus to plus and if we talking about whole flow, all right, it's from plus to minus because it appears when the electrons are Free the valence electron from its outer shell, it appears that we go from positive to negative, but one amp is one amp. The amount of current flow is the same period, the calculations are the same period. How we look at basic circuit analogy is the same. It's only the convention of either whole flow or electron flow. That's it. All right.

So we're going to leave that there. And I'm hoping that I explained that properly. Again, I'm going to put a phone number up there. You're going to get an email. If you've got any more questions and you want to talk to me or ask me questions, you're going to have a way to do that. So that's it for this.

That's the difference between electron flow and whole flow. All right. So we're going to stop here. I'm going to clear the slide we're going to go on. Alright, let's stop here, do some questions. And let's look at the first one.

Again, if you need to review, hit the pause button, go back or re listen in this case re listen to some of the things I've said and try to answer these questions. Alright first one, whole flow appears to go from positive terminal of the battery to negative terminal the battery is that true or false? Next question. function of a switch is to complete the circuit and allow current flow. Is that true or false? And here are the answers.

Hole flow appears to go from the positive terminal of the battery to the negative terminal of the battery and that answer is true. Number two a function of the switch is to complete the circuit and allow current flow that is, keep getting that popped up true. And this is the slide that I wanted to show you. Specifically, the first bullet resistance is measured in ohms and we use the Omega sign so, that's that's a pretty one for the second bullet, electromotive force or electrical pressure of voltages, many measured in volts VDC and that stands for volts direct current, or V AC volts alternating current. Again, we're going to be doing a voltage, current and resistance lesson, or course after this one, we're going to go into that in more detail. And again, with all my presentations or all the courses I present, they'll always be a phone number and an email to get ahold of me to ask me questions.

All right, last one, current, both electron flow and hole flow are measured in amperes, abbreviated amps, or a. Alright, well this concludes electronic basics, part three. And we're going to the Next one, which will be the final lecture on this this course. It's electronic basics, Part Four. And we'll see you over there. And we'll wrap things up. We'll put the phone number up there for you, and we'll talk to you there.

Thank you.