It's basically already in the question title. The technical direction of current is actually wrong. Yes, people used to think it was positive charge carriers and not negatively charged electrons. So what. They were wrong. In science, we make mistakes all the time. That's essential. As Harald Lesch says, "We err our way upwards." People once thought the Earth was flat (well, that assumption wasn't that widespread), but today we know it's round. Nobody says, yes, the Earth is round, but we have the technical shape, so it's flat… That's NONSENSE!!!11!
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The “technical” current direction is the flow direction of the electric current, both in physics and in technology.
The “physical” current direction is only available in physics lessons at school, but not in science physics.
If one wanted to reverse the current direction, one would change without having a significant advantage:
Examples:
No, you don’t.
Both positive and negative charge carriers occur in microelectronics. What kind of meaning would it have to change them?
By the way, I agree with Franky and Franz’s arguments.
One would not have any advantage, nor would it have any “not significant” 🙂
Why would you do that? Tell me the reason? There is not the quietest.
Here, you would have to revise and adapt all the equations of electrodynamics, at the same time being NULL, but really EXAKT NULL. You have a somewhat slanted picture of how electrical engineering works. Even if you write it fat, it doesn’t change. There is no one in the world who calculates with the “physical direction of power” except that in school books there is an old load. The term is simply completely unnecessary.
https://www.youtube.com/watch?v=bHIhgxav9LY
It’s easier to think about it:
Plus is too much, minus is too little.
I find the totally uncomfortable to trace the current path from minus to plus. Especially when Minus is mass in most cases, where everything goes together. I’m used to it differently.
I hate it when Plus is mass.
The fact that this view is physically wrong is only really relevant when there are physical or chemical relationships.
If you follow a circuit diagram functionally, it doesn’t matter: the “technical current” flows in the direction of the arrow through the diode and is good. When layout the board: From Plus to Minus… aha, so around….
Fun fact: In steam radio times, diodes – or even the entire circuit diagram – were actually often drawn in the physical current direction. That’s all confusing. xX
First: As mentioned in other answers, the “technical” current direction is the physically defined current direction. All formulas are designed.
As a physicist, one would not speak of a “physical” current direction (this is only in school), but of a charge carrier movement. This can be different – see, for example, ion movement in the liquid or electron/hole movement in semiconductors.
Physics doesn’t work so that you throw everything away with new findings… It is more likely to see in which area the old model (physical context) is still valid and limited as a special case… Even with the round earth this is so: our maps are flat, because you can neglect the curvature on small distances and it becomes easier to handle. It’s even easier with electricity: The mere sign does not alter the explanations and formulas.
The technical current direction would not be “simplified” but rather expensive. But the reason why it is left is that: to change you would be useless. For calculating electrical circuits, one current direction is as good as the other.
Yes, the Earth is round. And: Yes, we have the technical flat earth: Each map is one.