The work done by electric force is independent of the path taken by the charge,thus static electric force is conservative force. A=fq.E.dT=0             o a b o r r o o a b r r q q dr r q q A b a 1 1 4 4 2     The work done by electric force is independent of the path taken by the charge, thus static electric force is conservative force.    0 l o A q E dl     0 l E dl  