Physics · Electrostatics
Two point charges of equal magnitude but opposite signs are placed at coordinates (0, 0, +a) and (0, 0, −a). A third positive test charge is moved in the electrostatic field created by these two charges from point P(−a, 0, 0) to point Q(0, a, 0). Which of the following best describes the work done by the electric field during this displacement?
- 1Work done depends on the path taken
- 2Work done is zero✓
- 3Work done is negative
- 4Work done is positive
Correct answer
Work done is zero
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