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Energy and voltage in circuits

Energy and voltage in circuits

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Question 23

A light-dependent resistor (LDR) can be used as a sensor to detect changes in light levels.

Describe how the resistance of an LDR varies as the intensity of the incident light changes.

You may sketch a graph to help your answer.

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Markscheme

Energy and voltage in circuits Questions

  1. IGCSE
  2. /Physics
  3. /Energy and voltage in circuits

25 exam-style questions on Edexcel IGCSE Physics Energy and voltage in circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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