Three charges are placed on three corners of a square as shown in the figure. Find the magnitude and direction of the electric field E at the forth corner.
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Point charges of are situated at each of the three corners of a square whose side is 15cm. The magnitude and direction of electric field at the vacant corner of the square is ___.
answer
E=2296v/m (along diagonal)
Calculate the electric field (magnitude and direction) at one corner of a square 1.22 m on a side if the other three corners are occupied by 2.40×10-6 C charges. Assume that the positive x-axis is directed to the right.