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4.3 Electric circuits

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Question 90

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

a light-dependent resistor (LDR)

B

a thermistor

C

a capacitor

D

a potentiometer

Markscheme

4.3 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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