Potentiometers
Falstad Simulation: Potentiometers
Breadboard the circuit to complete the section below.
![](http://tech.gpvanier.ca/wp-content/uploads/2019/10/3-Potentiometer_bb-1024x396.jpg)
Questions
- When the LED is off, or very dim, what level is the 10k potentiometer set to?
- When the LED in on, what level is the 10k potentiometer set to?
- 10k potentiometers are variable resistors. Why are there additional 220R resistors paired with each LED?
![](http://tech.gpvanier.ca/wp-content/uploads/2019/10/3-Potentiometer_schem.jpg)