O-LevelPhysicsElectricity5054/11 · May/June 2016 · Q311 Mark

The cells, lamps and resistors in the circuits are identical. In which circuit is the lamp the brightest?

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ACircuit diagram A with a single lamp and one cell in series.

BCircuit diagram B with two lamps and two cells in series.

CCircuit diagram C with two lamps in parallel and two cells in series.

DCircuit diagram D with two lamps and one cell in series.

✓ Correct answer

C: Circuit diagram C with two lamps in parallel and two cells in series.

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2016 Paper 1 Variant 1, question 31.

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