Part (a) of the figure shows two charged particles fixed in place on an x axis with separation L. The ratio q1/q2 of their charge magnitudes is 4.00. Part (b) of the figure shows the x component Enet,x of their net electric field along the x axis just to the right of particle 2. The x axis scale is set by xs = 30.3 cm. (a) At what value of x > 0 is Enet , x maximum? (b) If particle 2 has charge −3e, what is the value of that maximum? Assume e = 1.602×10−19 C. (a) (a) Number (b) Number (b)