Question

A test charge q is made to move in the electric field of a point charge Q along two different closed paths figure first path has sections along and perpendicular to lines of electric field. Second path is a rectangular loop of the same area as the first loop. How does the work done compare in the two cases? ​

Answer 1

Work done will be zero in both the cases.

Explanation: The electrostatic field is conservative, and in this field work done by electric force on the charge in a closed loop is zero. In this question both are closed paths, hence the work done in both the cases will be zero.