Two free point charges t4Q and +Q are placed at a distance r. A third charge q is so placed that all the three are in equilibrium. (a) q is placed at a distance r from 4 (6) q is placed at a distance -r from 3 3 (C)q=2 9 40 (d) 4=- 9
it's like conceptual question. As charge kept between both of these positive charges is independent of sign as it will be kept at the equilibrium position so options A and B ar...