What happens to the reading of a potentiometer if the temperature of the wire increases?
Correct Answer: Reading decreases
- Step 1: Understand what a potentiometer is. It is a device used to measure voltage or potential difference.
- Step 2: Know that a potentiometer has a wire that conducts electricity.
- Step 3: Recognize that when the temperature of the wire increases, the atoms in the wire move more and can cause more resistance.
- Step 4: Understand that increased resistance means that it is harder for electricity to flow through the wire.
- Step 5: Realize that if the resistance increases, the potential gradient (the change in voltage along the wire) can change.
- Step 6: Conclude that as the potential gradient changes, the reading on the potentiometer will also change.
No concepts available.
