A 5.4-µC point charge is located at x = 1.1 m,y = 2.9 m, and a -4.3-µC point charge is located atx = 2.3 m, y = -1.9 m.
(a) Find the magnitude and direction of the electric field atx = -2.7 m, y = 1.2 m.
(b) Find the magnitude and direction of the force on a proton atx = -2.7 m, y = 1.2 m.
