The magnitudes of electric field and of the electric potential on the axis of an electric dipole at a distance 'r' from its centre are E and V, respectively. The magnitude of the electric field and potential at the same distance 'r' on its equatorial line will be: (given r >> a, where 2a is dipole length)

$\frac{E}{2}, 0$

The correct answer is Option (4) → $\frac{E}{2}, 0$