Electric quadrupole. Figure 22-46 shows a generic electric quadrupole. It consists of
Chapter 22, Problem 21(choose chapter or problem)
Electric quadrupole. Figure 22-46 shows a generic electric quadrupole. It consists of two dipoles with dipole moments that are equal in magnitude but opposite in direction. Show that the value of E on the axis of the quadrupole for a point P a distance z from its center (assume z d) is given by E 3Q4p0z4 in which Q ( 2qd2 ) is known as the quadrupole moment of the charge distribution. z+q q q +qdP + +dp +pFigure 22-46 21.
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