Consider the figure above. The blue balls are located at (-1,1,0)and (1,-1,0) each carry a charge, Q. The green balls are located at (1,1,0) and(-1,-1,0). They each carry a charge -Q. There are three pointsmarked in red, O is the origin, P1 is (0,0,2) and P2 is (2,0,0).There are no charges at these points. I would like to rank thepoints O, P1, and P2 in order of decreasing electric fieldstrength. The correct answer is:
The fields are all equal P1>O>P2 P2>P1=O O>P2=P1 P2>P1>O O>P1>P2 O>P2>P1 P1>P2>O P1=P2>O None of the above
