(Hint: Clarify your answer using graphical solution.) A point charge ql and a point charge q2 = -12e is fixed at x= 5 nm, y= 0. The locus of all points in the xy plane for which V= 0 (other than infinity) is a circle centered on the x axis, as shown in the figure below. Find (a) the location xc of the center of the circle and (b) the radius R of the circle. (c) Is the xy cross section of the 10 V equipotential surface +8e is fixed at the origin of a rectangular coordinate system, also a circle? V= 0- 91 12

(Hint: Clarify your answer using graphical solution.) A point charge ql and a point charge q2 = -12e is fixed at x= 5 nm, y= 0. The locus of all points in the xy plane for which V= 0 (other than infinity) is a circle centered on the x axis, as shown in the figure below. Find (a) the location xc of the center of the circle and (b) the radius R of the circle. (c) Is the xy cross section of the 10 V equipotential surface +8e is fixed at the origin of a rectangular coordinate system, also a circle? V= 0- 91 12

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