O-LevelPhysicsElectricity5054/12 · Oct/Nov 2017 · Q361 Mark

A circuit includes a thermistor and a light-dependent resistor (LDR). The resistance of the thermistor and the resistance of the LDR both increase. Which changes cause this?

Adecrease in temperature, decrease in brightness

Bdecrease in temperature, increase in brightness

Cincrease in temperature, decrease in brightness

Dincrease in temperature, increase in brightness

✓ Correct answer

A: decrease in temperature, decrease in brightness

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2017 Paper 1 Variant 2, question 36.

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