Exam-style question
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What is the effect of connecting an LDR in a potential divider circuit when light intensity increases?.
- A.The output voltage decreases
- B.The output voltage increases
- C.The output voltage remains constant
- D.The output voltage becomes zero
Model answer
What a good answer should say
- The output voltage increases
Explanation
Why this works
As light intensity increases, the resistance of the LDR decreases, allowing more current to flow through the potential divider, which increases the output voltage.
Common mistake
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