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10.2 Resistance

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Question 40
H

A 12 V supply is connected to a fixed resistor and a variable resistor in series. At one setting, the current is 0.30 A and the variable resistor is 16 Ω. The variable resistor is then set to 6.0 Ω. What is the new potential difference across the fixed resistor?

[1]
A

9.6 V9.6\ \mathrm{V}9.6 V

B

7.2 V7.2\ \mathrm{V}7.2 V

C

2.4 V2.4\ \mathrm{V}2.4 V

D

12 V12\ \mathrm{V}12 V

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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