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4.3 Electric circuits

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Question 86

Which of the following best describes a Light-Dependent Resistor (LDR)?

A

a device that stores electrical charge

B

a light-sensitive resistor whose resistance changes with light intensity

C

a resistor whose resistance depends on temperature

D

a semiconductor device that allows current to flow in only one direction

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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