Lag1989 problem number 13.11

Find the intensity of the field created by a dipole, the electrical moment of which is P = 6.2 * 10⁻³ ° C · m, at a distance of cm from the middle of the dipole at the point lying: r = 3 * 10⁻⁷ a) on the continuation of the dipole; b) on the perpendicular to the dipole.