Question Stem
Two point charges $$−Q$$ and $$+ \frac{Q}{\sqrt{3}}$$ are placed in the xy-plane at the origin (0, 0) and a point (2, 0), respectively, as shown in the figure. This results in an equipotential circle of radius 𝑅 and potential 𝑉=0 in the xy-plane with its center at (b, 0). All lengths are measured in meters.