Two equal charges `q` of opposite sign separated by a distance 2a constitute an electric dipole of dipole moment `p`. If P is a point at a distance r from the centre of the dipole and the line joining the centre of the dipole to this point makes an angle `theta` with the axis of the dipole, then then potential at P is given by `(f gt gt 2a)` where (p = 2 qa)

Options

A. `V=(p cos theta)/(4 piepsilon_(0)r^(2))`
B. `V=(p cos theta)/(4 piepsilon_(0)r)`
C. `V=(p sin theta)/(4 piepsilon_(0)r)`
D. `V=(p cos theta)/(4 piepsilon_(0)r^(2))`

Answer

B