Two non-conducting sphere of radius R have charge Q uniformly distributed. The centres of sphere are `x = 0` and `x = 3R`. Find the magnitude and direction of the net electric field on the X-axis
(i) `x = 0`
(ii) `x = (R)/(2)`
(iii) `x = (3R)/(2)`
(iv) `x = 4R`

Options

A. `0`, `kq/(18R^(2))`
B. `0`, `kq/(18(R^3))`
C. `0`, `kq/9(R^2)`
D. `0`, `k2q/18(R^2)`

Answer

A