Exam-style question
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In a potential divider circuit, what happens to the output voltage if the resistance of one of the resistors is increased?.
- A.The output voltage increases
- B.The output voltage decreases
- C.The output voltage remains the same
- D.The output voltage becomes negative
Model answer
What a good answer should say
- The output voltage decreases
Explanation
Why this works
Increasing the resistance of one of the resistors in a potential divider reduces the current through the circuit, which in turn decreases the output voltage across that resistor.
Common mistake
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