O-LevelPhysicsElectricity5054/12 · May/June 2023 · Q291 Mark

A student has three 15Ω resistors. She connects the resistors together in different arrangements. What is the minimum resistance and what is the maximum resistance of the arrangements that the student can produce?

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Aminimum resistance/Ω: 5.0, maximum resistance/Ω: 15

Bminimum resistance/Ω: 5.0, maximum resistance/Ω: 45

Cminimum resistance/Ω: 15, maximum resistance/Ω: 30

Dminimum resistance/Ω: 15, maximum resistance/Ω: 45

✓ Correct answer

B: minimum resistance/Ω: 5.0, maximum resistance/Ω: 45

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2023 Paper 1 Variant 2, question 29.

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