FIGURE 20-8
-Two charges of magnitude 6.0 μC, but opposite signs, are placed at the corners of the base of an equilateral triangle, as shown in Figure 20-8. What is the electric potential at the vertex, P, of the triangle due to these charges?

Question

FIGURE 20-8 
-Two charges of magnitude 6.0 μC, but opposite signs, are placed at the corners of the base of an equilateral triangle, as shown in Figure 20-8. What is the electric potential at the vertex, P, of the triangle due to these charges?

Quizplus · Accepted Answer

The electric potential due to a point charge is given by V = kQ/r. Since the charges are equal in magnitude but opposite in sign, their potentials at point P will cancel each other out, resulting in a net potential of 0 V.

FIGURE 20-8 -Two Charges of Magnitude 6.0 μC, but Opposite Signs, Are