AP Physics 1 Question 270: Answer and Explanation
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6. An object of charge +q feels an electric force FE when placed at a particular location in an electric field, E. Therefore, if an object of charge -2q were placed at the same location where the first charge was, it would feel an electric force of
- B. -2FE
- C. -2qFE
Correct Answer: B
Since FE (on q) = qE, it must be true that FE (on -2q) = -2qE = -2FE.