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10.2 Resistance

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Question 35
H

A student adjusts a variable resistor in series with a fixed resistor. The table shows two settings.

SettingSupply potential difference / V\mathrm{V}VCurrent / A\mathrm{A}A
P6.00.20
Q9.00.25

The fixed resistor remains at 10 Ω. How does the variable resistance change from P to Q?

[1]
A

It decreases by 6.0 Ω6.0\ \Omega6.0 Ω

B

It increases by 6.0 Ω6.0\ \Omega6.0 Ω

C

It decreases by 16 Ω16\ \Omega16 Ω

D

It increases by 16 Ω16\ \Omega16 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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