b How much work is required to separate the two charges

Last updated: 6/24/2023

b How much work is required to separate the two charges infinitely away from each other c Suppose that the same system of charges is now placed in an external electric field E A 1 r A 9 x 105 C m2 What would the electrostatic energy of the configuration be Solution a U 4 1992 9 10 x r Scanned by TapScanner 7x 2 x10 2 0 18 0 7 J b W U U 0 U 0 0 7 0 7 J c The mutual interaction energy of the two charges remains unchanged In addition there is the energy of interaction of the two charges with the external electric field We find