Three charged particles are arranged on corners of a square as shown in Figure shown below, with charge -Q on both the particle at the upper left corner and the particle at the lower right corner, and charge +20 on the particle at the lower left corner. What is the direction of the electric field at the upper right corner, which is a point in empty space? (e) (b) +2Q -e B. to the right A. upward and to the right C. downward D. downward and to the left

Three charged particles are arranged on corners of a square as shown in Figure shown below, with charge -Q on both the particle at the upper left corner and the particle at the lower right corner, and charge +20 on the particle at the lower left corner. What is the direction of the electric field at the upper right corner, which is a point in empty space? (e) (b) +2Q -e B. to the right A. upward and to the right C. downward D. downward and to the left