Consider an electric dipole where the positive charge, +q, is located on the positive z axis a distance d/2 above the x−y plane, and the negative charge, −q, is located on the negative z axis a distance d/2 below the x−y plane, as shown. If the evaluation point is at a distance which is very large as compared to the separation between the charges, then the form of the expression for the net electric field has a very simplified form in terms of the electric dipole moment (EDM).