FIGURE 19-11
-Three equal point charges of varying signs are placed on three of the corners of a square of side d as shown in Figure 19-11. Which of the arrows shown represents the direction of the net electric field at the vacant corner of the square?

Question

FIGURE 19-11 
-Three equal point charges of varying signs are placed on three of the corners of a square of side d as shown in Figure 19-11. Which of the arrows shown represents the direction of the net electric field at the vacant corner of the square?

Quizplus · Accepted Answer

The electric field due to the positively charged corner and the negatively charged corner will point towards the center of the square, while the electric field due to the other positively charged corner will point away from the center of the square. The net electric field at the vacant corner will be the vector sum of these three electric fields, which will point in the direction of arrow B.

FIGURE 19-11 -Three Equal Point Charges of Varying Signs Are Placed on Are