Question

Consider a square of side r = 4.60 cm with two q = +9.00 μC charges at adjacent corners of the square and two p = −3.00 μC charges at the other corners.

a.)Find the electric field at the center of the square. Enter a positive value if the electric field is straight down and enter a negative value if the electric field is straight up. b.)Find the potential at the center of the square.

Answer 1

for drawn charge configuration, net electric field at centre will be in downward direction. So it will be positive.