If V2 is NOT present(VB=GND) i can solve it easily using voltage divider formula: I know the steps:
- I = V1/(R1+R2)
- Vout = I * R2 =>(i have 'I' from step 1,R2 is known)=> Vout = (V1*R2)/(R1+R2)
A) I would like to request some help on how to solve it when v2 = 3.3 volts is present. Please do not skip steps if you answer it.
B) Vout is calculated with reference to GND. Right? If yes, that means the voltage drop at R2 equals to Vout = Vout - GND = Vout - 0 = Vout assuming GND as reference point?
C) Is it correct to say the voltage drop at R2 = Vout - VB? (So in this case i do not take GND as a reference point).
D) So there are 2 different ways to describe voltage drop? Like case B) and case C).Am i correct?