Electronics > Beginners
current flow
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m3vuv:
ive been led to belive power flows from neg to positive,so why are diode and transistor symbles like  they are as in showingthe oposit? am i misisng something here?
soldar:
This has been discussed to death. You can find many threads discussing this.

https://www.eevblog.com/forum/beginners/why-not-change-conventional-current-to-electron-current/

SparkyFX:
The technical definition of direction was formed before the physical direction was known, therefore symbols are oriented after the technical direction. Technically holes can "move" by electrons filling the void.
garethw:
Think of holes as positive charge carriers. The lack of an electron is just as powerful a concept as the electron being present.


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David Hess:
It was Franklin's fault:

https://en.wikipedia.org/wiki/Electric_charge#History

He also posited that when matter contained too little of the fluid it was negatively charged, and when it had an excess it was positively charged. For a reason that was not recorded, he identified the term positive with vitreous electricity and negative with resinous electricity.
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