12. A uniform electric field is aligned with the y-axis. When a negative point charge (q = -5.0 x 10-6 C) is moved downward and to the right, from the origin to the point (x,y)=(40 cm, -30 cm), the potential energy decreases by 1.5 x 10 3J. What is the magnitude and direction of the electric field? F = - 180000 A. E = 430 N/C and points in the positive y direction B. E = 430 N/C and points in the negative y direction C.E = 1000 N/C and points in the positive y direction D. E = 1000 N/C and points in the negative y direction E. E = 3000 N/C and points in the negative y direction 9.5