Question: Suppose that four equal positive charges are located at the corners of a square, as in the diagram. a. Using small arrows, indicate the direction

Suppose that four equal positive charges are located at the corners of a square, as in the diagram.
a. Using small arrows, indicate the direction of the electric field at each of the labeled points.
b. Would the magnitude of the electric field be equal to zero at any of the labeled points? Explain.

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