Suppose a uniformly charged wall provides a uniform electric field of `2times10^(4)N"/"C` normally.A charged particle of mass "2g" being suspended through a silk thread of length "20cm" and remain stayed at a distance of "10cm" from the wall.Then the charge on the particle will be `(1)/(sqrt(x))mu C` where `x=_____________` [use `g=10m"/"s^(2)` ]