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3 marksElectric Fields

CAPE Physics Unit 2 · 2001 · Paper 1 · Question 1(a)

Properties and calculations concerning Coulomb's law and point charges in a triangle configuration.

State THREE properties of the electrostatic force between two stationary, charged particles.

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Other parts of this question

  1. 1(b)Write an equation to express the magnitude of the electric force between two charges.[1 mark]
  2. 1(c)(i)Locate on Figure 1 the forces F₁ and F₂ acting on Q₃ due to Q₁ and Q₂, respectively.[1 mark]
  3. 1(c)(ii)Calculate a value for F₁.[2 marks]
  4. 1(c)(iii)Calculate a value for F₂.[1 mark]
  5. 1(c)(iv)Hence calculate the magnitude of the resultant force acting on Q₃.[2 marks]

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