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10.2 Resistance

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Question 8

A battery-powered hand warmer contains a heating element with a resistance of 11 Ω. A 7.0 Ω resistor is connected in series with the heating element to limit the current. The circuit operates from a 9.0 V battery.

What is the current through the heating element?

[1]
A

0.82 A0.82\ \mathrm{A}0.82 A

B

0.50 A0.50\ \mathrm{A}0.50 A

C

2.3 A2.3\ \mathrm{A}2.3 A

D

1.3 A1.3\ \mathrm{A}1.3 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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