Write an expression (derivation not required) for intensity of electric field in : (1) Axial position. (2) Broad side position of an electric dipole, in terms of its length (2a) dipole moment (p) and distance (r). (ii) What is the ratio of these two intensities i.e., E_(1):E_(2) , for a short electric dipole ?

Derive an expression for intensity of electric field are a point in broadside position or on an equatorial line of an electric dipole.

Write an expression of magnetic flux density .B. at a point in end-on position or an axial position of a magnetic dipole. (Derivation not required.)

Derive the expression for the electric potential at any point along the axial line of an electric dipole.

The SI unit of electric field intensity is

(a) Draw the equipotential surfaces corresponding to a uniform electric field in the z-direction. (b) Derive an expression for the electric potential at any point along the axial line of an electric dipole

Electric Field due to Dipole

If the intensity of electric field at a distance x from the centre in axial position of small electric dipole is equal to the intensity at a distance y in equatorial position, then

(i) Derive the expression for electric field at a point on the equatorial line of an electric dipole. (ii) Depiet the orientation of the dipole in (i) stable, (ii) unstable equilibrium in a uniform electric field.

Derive an expression for electric field intensity at a point due to point charge.