Question: What is the effect of increasing the resistance of the potentiometer wire on the potential gradient?

Options:

1. It increases the potential gradient
2. It decreases the potential gradient
3. It has no effect
4. It depends on the voltage applied

Correct Answer: It decreases the potential gradient

Solution:

Increasing the resistance of the potentiometer wire while keeping the voltage constant decreases the current, which in turn decreases the potential gradient.