A charged ball of mass `5.88xx10^(-4)` kg is suspended from two silk strings of equal lengths so that the strings are inclined at `60^(@)` with each other. Another ball carrying a charge which is equal in magnitude but opposite in sign of the first one is placed vertically below the first one at a distance of `4.2xx10^(-2) m`. Due to this, the tension in the strings is doubled. Determine the charge on the ball and the tension in the strings after electrostatic interaction. `(g=9.8 m//s^(2))`

Answer

`3.36xx10^(-8) C, 6.65xx10^(-3) N`