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3.2 Simple circuits

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Question 19
F

The light intensity on a light-dependent resistor (LDR) in a circuit increases.

What happens to the resistance of the LDR and to the current in it?

[1]
A

The resistance decreases and the current increases

B

The resistance increases and the current decreases

C

The resistance decreases and the current decreases

D

The resistance increases and the current increases

Markscheme

3.2 Simple circuits Questions

  1. GCSE
  2. /Physics
  3. /3.2 Simple circuits

42 exam-style questions on OCR GCSE Physics 3.2 Simple circuits, covering 3.2.1 Series and parallel circuits, 3.2.2 Circuit symbols and circuit diagrams, 3.2.3 Current, potential difference and resistance, 3.2.4 Ohm's law, 3.2.5 Ohmic and non-ohmic resistors, 3.2.6 Designing circuits to investigate resistance, 3.2.7 Linear and non-linear circuit components, 3.2.8 Current-potential difference graphs for components, 3.2.9 Resistance in series and parallel, 3.2.10 Series and parallel circuit problems, 3.2.11 Circuits for measurement and testing, 3.2.12 Power transfer in circuit devices, and 3.2.13 Energy and power in resistor circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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