Which electronic component has an electrical resistance that decreases as the intensity of light falling on it increases, and can be used in automatic lighting control circuits?
a light-dependent resistor (LDR)
a thermistor
a capacitor
a potentiometer
67 exam-style questions on CIE IGCSE Physics 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.