Two charges `+- 10 mu C` are placed `5*0 mm` apart. Determine the electric field at (a) point P on the axis of dipole `15 cm` away from its center on the side of the positive charge. As shown in Figure and at (b) a point Q. `15 cm` away form O on a line passing through O and a line passing through O and normal to the axis of the dipole as shown in Fig.

Explanation

(a) ` 2.6 xx 10^(5) N //C ` along the dipole moment
(b) ` 1. 33 xx 10^(5) N //C` opposite to dipole moment