Physics 9702 · AS & A Level · Potential dividers

Potential dividers — practice question

A battery and a resistor $R$ are connected in series with a light-dependent resistor (LDR). When no light falls on the LDR, its resistance is the same as the resistance of $R$. As the light intensity on the LDR increases, which statement is correct?

  • AThe current in $R$ decreases.
  • BThe current in the LDR decreases.
  • CThe p.d. across $R$ decreases.
  • DThe p.d. across the LDR decreases.

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