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10.2 Resistance

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Question 18
F

A 15 Ω resistor carries a current of 200 mA. It is replaced by a 30 Ω resistor. The potential difference across the resistor is unchanged. What are the potential difference and the new current?

[1]
A

3.0 V3.0\ \mathrm{V}3.0 V and 400 mA400\ \mathrm{mA}400 mA

B

3.0 V3.0\ \mathrm{V}3.0 V and 100 mA100\ \mathrm{mA}100 mA

C

6.0 V6.0\ \mathrm{V}6.0 V and 200 mA200\ \mathrm{mA}200 mA

D

6.0 V6.0\ \mathrm{V}6.0 V and 100 mA100\ \mathrm{mA}100 mA

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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