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10.2 Resistance

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Question 33
H

A student records these readings for two series resistors connected to a supply.

QuantityReading
Supply potential difference8.0 V
Potential difference across X3.0 V
Current through X0.20 A
Current through Y0.30 A

The current reading for Y is incorrect. The other readings are correct. What is the resistance of Y?

[1]
A

25 Ω25\ \Omega25 Ω

B

15 Ω15\ \Omega15 Ω

C

16.7 Ω16.7\ \Omega16.7 Ω

D

40 Ω40\ \Omega40 Ω

Markscheme

10.2 Resistance Questions

  1. GCSE
  2. /Physics
  3. /10.2 Resistance

81 exam-style questions on Edexcel GCSE Physics 10.2 Resistance, covering 10.2.1 Current in a circuit and conservation at junctions, 10.2.2 Resistance and variable resistors, 10.2.3 Series and parallel resistance, 10.2.4 I–V characteristics of components, and 10.2.5 LDRs and thermistors. Each one has a worked solution and a mark scheme showing where the marks go.

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