- #1
dadadeee23
- 6
- 0
I am stumped on a problem I have been working on. I am told to build a circuit that will have an output voltage between -9 and 9V.
We are given two 12 V batteries as power sources, and a choice between 3 potentiometers with values of 10k ohm, 20k ohm, and 50k ohm. We are allowed to use any resistor within the range of 10 ohms to 100Mohms.
How the heck to I use the potentiometer to get a negative voltage? I used voltage division to get a resistor value for a positive 9 volts. I'm stumped
We are given two 12 V batteries as power sources, and a choice between 3 potentiometers with values of 10k ohm, 20k ohm, and 50k ohm. We are allowed to use any resistor within the range of 10 ohms to 100Mohms.
How the heck to I use the potentiometer to get a negative voltage? I used voltage division to get a resistor value for a positive 9 volts. I'm stumped