FIGURE 21-6
-Four point charges of varying magnitude and sign are arranged on the corners of the square of side d as shown in Fig. 21-6. Which of the arrows shown represents the net force acting on the point charge with a charge +Q?

Question

FIGURE 21-6 
-Four point charges of varying magnitude and sign are arranged on the corners of the square of side d as shown in Fig. 21-6. Which of the arrows shown represents the net force acting on the point charge with a charge +Q?

Quizplus · Accepted Answer

The net force on the point charge with a charge +Q is the vector sum of the forces due to the other three charges. The force due to the charge -Q at the top right corner is to the left, the force due to the charge +Q at the bottom right corner is to the right, and the force due to the charge -Q at the bottom left corner is upward. The vector sum of these forces is to the right, which is represented by arrow A.

FIGURE 21-6 -Four Point Charges of Varying Magnitude and Sign Are Arranged