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QUESTION
Four charges form a square of with sides of length 1. The top two charges have +1.5nC, the bottom two charges have -1.
Four charges form a square of with sides of length 1.0 cm. The top two charges have +1.5nC, the bottom two charges have -1.5nC. What is the magnitude and direction of the net electric field at the exact center of the square?
