Three point charges are located as shown in Fig. 3.38, each a distance a from the origin. Find the approximate electric field at points far from the origin. Express your answer in spherical coordinates, and include the two lowest orders in the multipole expansion.

Solution 34P

Step 1 of 2:

In this question, we need to find the approximate electric field at point far from the origin, we need to express the coordinates in spherical coordinates

Considering the given graph