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O-LevelPhysicsElectricity5054/11 · May/June 2025 · Q301 Mark

The graph shows how the resistance of a thermistor varies with temperature. [Thermistor resistance-temperature graph] The thermistor is at a temperature of 10°C and is connected in series with a fixed resistor of resistance 20 Ω. What is the combined resistance of both components?

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A16 Ω
B20 Ω
C80 Ω
D100 Ω

✓ Correct answer

D: 100 Ω

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About this question

Topic
Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2025 Paper 1 Variant 1, question 30.

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