A-LevelPhysicsD.C. circuits9702/12 · May/June 2023 · Q331 Mark
A car has sensors for detecting the light intensity and temperature of its environment. The sensors make use of a light-dependent resistor (LDR) and a thermistor. The car moves from a warm and dark environment into a cold and bright environment. What are the changes to the resistances of the LDR and thermistor?
Aresistance of LDR: increases, resistance of thermistor: increases
Bresistance of LDR: increases, resistance of thermistor: decreases
Cresistance of LDR: decreases, resistance of thermistor: increases
Dresistance of LDR: decreases, resistance of thermistor: decreases
✓ Correct answer
C: resistance of LDR: decreases, resistance of thermistor: increases
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