(a) Determine the electrostatic  potential energy  of a system  consisting  of two charge  `7 muC
Channel: Doubtnut
Date: 2020-08-16

(a) Determine the electrostatic  potential energy  of a system  consisting  of two charge  `7 muC and -2 muC` (and with no external  filed)  placed  at `(-9 cm, 0,0) and (9 cm, 0,0)` respectively.  (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 xx 1//r^(2)`, where  `A = 9xx10^(5) C m^(-2)`.  What would the electrostatic energy  of the configuration be ?