What happens to the reading of a potentiometer if the resistance of the wire increases?
Correct Answer: Reading remains the same
- 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 with a uniform resistance along its length.
- Step 3: Recognize that the reading on the potentiometer shows the voltage across a certain length of the wire.
- Step 4: Realize that the reading depends on the potential difference (voltage) applied across the entire wire.
- Step 5: Learn that if the resistance of the wire increases, it does not change the total potential difference applied.
- Step 6: Conclude that as long as the potential difference remains constant, the reading of the potentiometer will not change.
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