Let `E_a` be the electric field due to a dipole in its axial plane distant `l` and let `E_q` be the field in the equatorial plane distant `l`, then the relation between `E_a and E_q` will be
Options:
(a) `E_a=4E_q`
(b) `E_q =2E_a`
(c) `E_a=2E_q`
(d) `E_q=3E_a`