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11.2 Uses, dangers and electric fields

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Question 20
H

A student observes four effects of static electricity:

  • two negatively charged polythene rods push each other apart without touching

  • the force between the rods gets weaker as the rods are moved further apart

  • a charged balloon sticks to an uncharged wall

  • a spark jumps across a small air gap between a charged metal dome and an earthed metal sphere

Explain how the idea of an electric field can be used to explain all four effects.

[6]
Markscheme

11.2 Uses, dangers and electric fields Questions

  1. GCSE
  2. /Physics
  3. /11.2 Uses, dangers and electric fields

80 exam-style questions on Edexcel GCSE Physics 11.2 Uses, dangers and electric fields, covering 11.2.1 Uses of electrostatic charge, 11.2.2 Dangers of sparking, 11.2.3 Electric fields, and 11.2.4 Electric fields and static electricity. Each one has a worked solution and a mark scheme showing where the marks go.

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