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10.2 Resistance

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Question 4

A resistor in a radio control circuit carries a current of 0.30 A when the potential difference across it is 6.0 V. The resistor is at a constant temperature.

What current flows through the same resistor when the potential difference across it is 4.0 V?

[1]
A

0.20 A0.20\ \mathrm{A}0.20 A

B

0.30 A0.30\ \mathrm{A}0.30 A

C

0.45 A0.45\ \mathrm{A}0.45 A

D

0.10 A0.10\ \mathrm{A}0.10 A

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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