In a potentiometer experiment, if the known voltage is increased, what happens to the balance length?
Correct Answer: Balance length increases.
- Step 1: Understand that a potentiometer is used to measure voltage by balancing it against a known voltage.
- Step 2: Recognize that the balance length is the length of wire needed to achieve this balance.
- Step 3: Know that if the known voltage increases, more voltage is needed to balance it.
- Step 4: Realize that a longer length of wire is required to achieve this balance with the higher voltage.
- Step 5: Conclude that as the known voltage increases, the balance length also increases.
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