The potential at a point x ( measured in `mu` m) due to some charges situated on the x-axis is given by
`V(x)=20//(x^2-4) vol t`

Options

A. `5//3 V//mu m` and in the-vex direction
B. `5//3 V//mu m` and in the+ve direction
C. `10//9 V//mu m` and in the-ve direction
D. `10//9 V//mu m` and in the +ve direction