1. The problem statement, all variables and given/known data A conducting sphere of radius R has a charge Q. A particle carrying a charge q is placed a distance 2R from the sphere. Find the potential at point A located a distance R/2 from the center of the sphere on the line connecting the center of the sphere and particle q. Note that the charge distribution of the sphere is not symmetrical due to the influence of particle q 3. The attempt at a solution The potential at point A will be equal to sum of potential due to sphere and charge 'q'. Due to sphere, V= kQ/R and due to charge, V= 2kq/5R But this is not the correct answer.