A-LevelPhysicsD.C. circuits9702/12 · Feb/Mar 2020 · Q371 Mark
In the circuits shown, the cell has negligible internal resistance. Which diagram shows a potential divider circuit that can vary the potential difference (p.d.) across the lamp?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A[Diagram A option]
B[Diagram B option]
C[Diagram C option]
D[Diagram D option]
✓ Correct answer
C: [Diagram C option]
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