Four charges are located in a plane as follows: q1 = -5 uC at (4,0) m; q2 = -3 uC at (4,4) m; q3 = -4 uC at (0,4) m; q4 = -2 uC at (0,0) m.
(a) Indicate the direction of the E field EACH charge gives rise to at (2,2) m.
(b) Calculate the x and y components of each of the above fields. Remember to specify the correct sign of each component.
(c) Find the magnitude and direction of the resultant field at (2,2).