- #1
John421
- 12
- 0
I believe that the formula Vout = Vin * R2/(R1+R2) is used to calculate how much voltage whatever is connected to Vout will be receiving.
So if:
- Vin = 12V
- R1 = 10 ohms
- R2 = 5 ohms
But if we then connect an appliance with a resistance of 2 ohms to Vout
- The circuit's overall resistance becomes 11.43 ohms
- R1 receives 1.05A and so reduces the voltage by 1.05A * 10 ohms = 10.5 volts
- Vout and R2 only get 1.5 volts