Obtain the equation of electric field by dipole at a point on axis of dipole.

Obtain the equation of electric field by dipole at a point on equator of dipole.

Obtain the equation of electric field at a point by system of 'n' point charges.

Obtain the equation of electric potential energy of a dipole from equation of potential energy of a system of two electric charges.

Two charges of dipole +- 10 mu C are placed 1mm apart. Determine the electric field at a point on the axis of the dipole 10 cm away from its centre and at 10 cm away from centre on the equator of the dipole.

Tow charges pm10 mu C are placed 5.0 mm apart determine the electric field at (a) a point p on the axis of the dipole 15 cm away from its centre o ont the side of the positive charge as (a) and (b) a point q 15 cm away from o on a line passing through o and normal to the axis of the dipole as

Obtain the expression of electric field at any point by continuous distribution of charge on a surface.

Obtain the expression of electric field at any point by continuous distribution of charge on a line.

Obtain the expression of electric field at any point by continuous distribution of charge on a volume.

Mention directions of electric field on axis and on equator by dipole.