Physics 9702 · AS & A Level · Potential dividers

Potential dividers — practice question

The diagram illustrates a potential divider circuit. The light level rises. What happens to the resistance of the light-dependent resistor (LDR) and to the output voltage?

  • Aresistance of the LDR decreases; output voltage decreases
  • Bresistance of the LDR decreases; output voltage increases
  • Cresistance of the LDR increases; output voltage decreases
  • Dresistance of the LDR increases; output voltage increases

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