The electric potential at the center of a square is 5 V when a charge of +Q is located at one of the square's corners.

4. The electric potential at the center of a square is 5 V when a charge of +Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of -Q are placed at the other three corners of the square? in Volts

Since we do not have to worry about vector addition for potential , we can directly add the potentials :Potential due to + Q charge = 5 VPotential due to each - Q charge = - 5 VTotal potential...