Two charges ±q are placed 5 mm apart. Determine the electric field at a point 15 cm away from O on a line passing through O and normal to the axis of dipole as shown in diagram (b). [Given: Electric field at a point P on the axis of the dipole 15 cm away from its centre O on the side of positive charge is $2.66 × 10^5 N/C$ along AB] (diagram a)

$1.33×10^5 N/C$ along BA

The correct answer is Option (2) → $1.33×10^5 N/C$ along BA