A point charge is placed at each corner of a square whose length is a. All charges have magnitude q. a) Two charges with a negative sign are located at x=a/2, y=a/2 and x=-a/2, y=a/2. The other charges are positive. What is the direction and the magnitude of the electric field located at the center of the square in terms of q and a? b) If the magnitude of the negative charge at x=a/2, y=a/2 is doubled repeat the calculation.

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To find the electric field at the center of the square due to the point charges we can first calcula... View the full answer