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| 1. |
Figure 2.32 shows a charge array known as an electric quadrupole. For a point on the axis of the quadrupole, obtain the dependence of potential on r for r//a gt gt 1 , and contrast your results with that due to an electric dipole, and an electric monopole (i.e., a single charge). |
| Answer» Solution :For large r, quadrupole POTENTIAL goes like `1//r^(3)`, dipole potential goes like `1//r^(2)` , MONOPOLE potential goes like 1/r. | |