Question

A dipole is oriented along the x axis. The dipole moment is p (= qs). (Assume the center of the dipole is located at the origin with positive charge to the right and negative charge to the left.) (a) Calculate exactly the potential V (relative to infinity) at a location x, 0, 0 on the x axis and at a location 0, y, 0 on the y axis, by superposition of the individual 1/r contributions to the potential. (Use the following as necessary: q, ε0, x, s and y.)

Answer 1

The potential due to dipole at a point (x,0,0) on the x- axis is given by, 2 2 4 -9) 4 4/p Therefore, the potential due to dipole at a point (x,0, 0) on the x- axis is V axial-一 The potential due to dipole at a point (0,y, 0) on the y- axis is given by, equatorialV +V 2 2 0 Therefore, the potential due to dipole at a point (0), 0) on the y-axis isl, atonal-0