Exam-style question
Try this first
How does a thermistor affect the output voltage of a potential divider when the temperature increases?.
- A.Increases the output voltage
- B.Decreases the output voltage
- C.Has no effect on the output voltage
- D.Makes the output voltage fluctuate
Model answer
What a good answer should say
- Increases the output voltage
Explanation
Why this works
As the temperature increases, the resistance of a thermistor decreases, allowing more current to flow through the potential divider. This results in an increase in the output voltage across the thermistor.
Common mistake
No common mistake is linked to this question yet.