how to make a NOT logic gate (inverter) or wire a single transistor

[CaptainKleptan]

I understand your battery ran out, but whats the whole point if we aren't seen it?

[LT21j]

Sorry I'm new but would a pnp transistor work as well?

[youspinmerightrounds]

@LT21j Hi there, can't really help you there, don't know much about npn, however it will have to operate in a very similar fashion, perhaps with the current moving in slightly different directions. ... nothing major however, if you understand the npn then you will definately understand the pnp..

[youspinmerightrounds]

hi there @thethirdeyefunction. a battery gives a potential energy to electons. in this case, they have a poential of 9V (where voltage is electric potential energy per unit charge). Thus when an electron leaves a battery, it has a potential of 9V. It must use all of this energy before it returns to the battery (it must enter the battery with 0V). So if the connection is just a wire, all this energy is used to heat the wire (a short circuit).

[youspinmerightrounds]

@thethirdeyefunction., 'Ground' means being at 0V. So ground and 0V are equivalent. + and - are pretty much the same thing if i'm correct, it's just convention to call the 9V plus and ground minus. another convention is to say 'high' or 'low'. So high is + and low is - .

hope this helps

[thethirdeyefunction]

hi, good video. but why is there always written 9V and 0V? istn't it just a 9V battery, period? what does that 0V mean and why is it called ground? why not calling it + and - ? i hope you can answer this question! thx and good bye

[Spicyperson9123]

@thethirdeyefunction 0v is negative of the battery and 9v is the postive end of the battery and if you have more questions let me know

[splitheaven]

hey thanks for the lesson. now i under stand abit more of not gate and how to make it :D