A positive particle with charge 2Q is at the origin between two equal negative particles each with charge - Q and a distance d away from the positive charge on opposite sides.
(a) Draw an electric field line diagram of the three paricle system.
Find the magnitude and direction of the electric field E
(b) as a function of y along the y axis for |y| > 0, and
(c) as a function of x along the yaxis for 0 < |x| < d and |x| > d. Use unit vector notation to indicate direction, and watch your signs.