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Back to 19.1 Electric Potential Energy: Potential Difference

19.1 Exercise 13

Avg difficulty 2.5

Take a square configuration of point charges, two positive and two negative, all of the same magnitude, with like charges sharing diagonals. What will happen to the internal energy of this system if one of the negative charges becomes a positive charge of the same magnitude?

  1. increase
  2. decrease
  3. no change
  4. not enough information

OpenStax College Physics 2e, 19.1 Electric Potential Energy: Potential Difference, exercise 13

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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.