Electric Field due to Dipole

The locus of the points (in the xy -plane) where the electric field due to a dipole (dipole axis is along x -axis and its equatorial is along y -axis) is perpendicular to its axis, is

The locus of the points (in the xy -plane) where the electric field due to a dipole (dipole axis is along x -axis and its equatorial is along y -axis) is perpendicular to its axis, is

It is not convenient to use a spherical Gaussian surface to find the electric field due to an electric dipole using Gauss's theorem because:

What is the angle between the directions of electric field due to an electric dipole and its dipole moment at any : (i) Axial p oint . (ii) Equatorial point .

The electric field due to an electric dipole at a distance r from its centre in axial position is E . If the dipole is rotated through an angle of 90^(@) about its perpendicular axis, the electric field at the same point will be

A point dipole vecp=-p_(0)xhatx is kept at the origin. The potential and electric field due to this dipole on the y-axis at a distance d are respectively (take V=0 at infinity)

The electric field due to a short dipole at a distance r, on the axial line, from its mid point is the same as electric field at a distance r^(') on the equatorial line, from its mid point.Determine the ratio r//r' .

Two short dipoles phat(k) and P/2 hat(k) are located at (0,0,0) & (1m, 0,2m) respectivley. The resultant electric field due to the two dipoles at the point (1m, 0,0) is

Two short dipoles phat(k) and P/2 hat(k) are located at (0,0,0) & (1m, 0,2m) respectivley. The resultant electric field due to the two dipoles at the point (1m, 0,0) is

(a) Define electric dipole moment. Is it a scalar or a vector ? Derive the expression for the electric field of a dipole at a point on the equatorial plane of the dipole. (b) Draw the equipotential surfaces due to an electric dipole. Locate the points where the potential due to the dipole is zero.