Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

The diagram illustrates a light-dependent resistor (LDR) connected in a potential divider circuit. The intensity of the light incident on the LDR is increased. Which row indicates how the resistance of the LDR changes, and how the voltmeter reading changes?

  • Aresistance decreases, reading decreases
  • Bresistance decreases, reading increases
  • Cresistance increases, reading decreases
  • Dresistance increases, reading increases

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