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Back to 18.4 Electric Field: Concept of a Field Revisited

18.4 Exercise 1

Avg difficulty 2.5

Two particles with charges +2q and +q are separated by a distance r. The +2q particle has an electric field E at distance r and exerts a force F on the +q particle. Use this information to answer questions 31–32.

What is the electric field of the +q particle at the same distance and what force does it exert on the +2q particle?

  1. E/2, F/2
  2. E, F/2
  3. E/2, F
  4. E, F

OpenStax College Physics 2e, 18.4 Electric Field: Concept of a Field Revisited, exercise 1

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.