Well, physicists, engineers, and electricians all have different jobs, so in the end, it doesn't amount to much. Physicists usually have no trouble switching mathematical signs where necessary, so it's usually not a big deal. On the other hand, if certain physicists would pay more attention to using trigonometry rigorously correctly in the first place, they wouldn't have sign issues ever, but that's a side rant that has nothing to do with actual circuit diagrams.
Negative to Positive, or Positive to Negative?
- Thread starter Merkava_4
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I'm an electrical engineer, although it's been a while since I've thought much about actually semiconductor physics. I actually work in a 0/1 world now more or less in a computer engineering field, but that's actually a pretty common career move.
In tranditional III-V doping in Group IV semiconductors (silicon really) I remember discussion about "electrons" and "holes". These were really abstractions used to help understand, even if holes were simply just an absence of electrons.
Also - conductive metal really just has a sea of electrons that generally don't belong to any atom as such. It's really just a "river" of electrons. When current flows, the current source is just adding X amount of electrons into the system, and the balance required in the conductor means that the same number of electrons have to leave the system. You're not necessarily ending up with the same electrons pumped into the system making it all the way to the end.
It's been a while since I've really thought of this, so I'm heavily simplifying and in any case I'm not an expert.
In tranditional III-V doping in Group IV semiconductors (silicon really) I remember discussion about "electrons" and "holes". These were really abstractions used to help understand, even if holes were simply just an absence of electrons.
Also - conductive metal really just has a sea of electrons that generally don't belong to any atom as such. It's really just a "river" of electrons. When current flows, the current source is just adding X amount of electrons into the system, and the balance required in the conductor means that the same number of electrons have to leave the system. You're not necessarily ending up with the same electrons pumped into the system making it all the way to the end.
It's been a while since I've really thought of this, so I'm heavily simplifying and in any case I'm not an expert.
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