Physics 9702 · AS & A Level · Potential dividers

Potential dividers — practice question

A cell that has internal resistance is joined to a light-dependent resistor (LDR), a fixed resistor and a voltmeter, as shown. The voltmeter reading rises. Which quantity falls as the voltmeter reading rises?

  • Athe charge moving through the cell per unit time
  • Bthe energy transferred to the fixed resistor per unit charge
  • Cthe intensity of the light incident on the LDR
  • Dthe terminal potential difference across the cell

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