Physics · Electrostatic Potential

A charge \( q \) is moved along a closed loop in the presence of an electrostatic field produced by a static charge configuration. The total work done by the electrostatic field in this closed path is:

1. Positive and depends on the path length
2. Zero because electrostatic force is conservative
3. Negative and depends on the shape of the loop
4. Equal to the potential energy difference between start and end points