Using the dipole potential at points far from a dipole (given by Equation 22.6 in
Chapter 22, Problem 72(choose chapter or problem)
Using the dipole potential at points far from a dipole (given by Equation 22.6 in Example 22.5), show that the electric field at an arbitrary position can be written E S = kp r3 c13cos2u - 12ni + 3sin u cos uj n d where the x-axis coincides with the dipole axis.
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