Question

# Consider a square of side r = 4.60 cm with two q = +9.00 μC charges...

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.

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

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