AP Physics 1 Question 458: Answer and Explanation

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Question: 458

6. What happens to the magnitude of the electric force between two opposite charges if the magnitude of each charge is halved and the distance between their centers is halved?

  • A. It is doubled.
  • B. It is quadrupled.
  • C. It is halved.
  • D. It remains the same.

Correct Answer: D

Explanation:

D

The electric force between two particles with charges of q1 and q2, separated by a distance r, is given by the following equation:

If the magnitude of each charge is halved and the distance between their centers is halved, then the electric force will be

The magnitude of the electric force remains the same.