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4.3.3 Action and use of circuit components

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Question 42

Which circuit typically includes a light-dependent resistor (LDR), and how does its resistance change as the ambient light brightness increases?

A

Circuit: rectifier; Resistance: increases

B

Circuit: rectifier; Resistance: decreases

C

Circuit: automatic night light; Resistance: increases

D

Circuit: automatic night light; Resistance: decreases

Markscheme

4.3.3 Action and use of circuit components Questions

  1. IGCSE
  2. /Physics
  3. /4.3.3 Action and use of circuit components

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.

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