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Physics (AS & A Level) · May / June 2018 · Paper 11 · Question 29

9702Uniform electric fields

A charged particle is in the electric field between two horizontal metal plates connected to a battery, as shown. There is a force F on the particle due to the electric field. The separation of the plates is doubled. What is the new force on the particle?

  1. AF/4
  2. BF/2
  3. CF
  4. D2F

As printed in the paper

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Correct answer: B. F/2

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