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Physics (AS & A Level) · May / June 2019 · Paper 12 · Question 32

9702Uniform electric fields

An electron is situated in a vacuum between two charged plates, as shown. [diagram: two charged plates with an electron between them] Which statement describes the motion of the electron due to the uniform electric field?

  1. AIt moves downwards with a constant acceleration.
  2. BIt moves downwards with zero acceleration.
  3. CIt moves upwards with a constant acceleration.
  4. DIt moves upwards with a decreasing acceleration.

As printed in the paper

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Correct answer: A. It moves downwards with a constant acceleration.

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