In Figure a, a particle of charge le is initially at coordinate z = 20 nm on

Question:

In Figure a, a particle of charge le is initially at coordinate z = 20 nm on the dipole axis through an electric dipole, on the positive side of the dipole. (The origin of z is at the dipole center.) The particle is then moved along a circular path around the dipole center until it is at coordinate z = ?? 2 0 nm. Figure b gives the work Wa done by the force moving the particle versus the angle θ that locates the particle. The scale of the vertical axis is set by Was = 4.0 x 10-30J. What is the magnitude of the dipole moment?