Some useful information: The electric field due to a point charge q: E = k÷r Five charges are fixed on the perimeter of a square. The square has side length d. The charges are q1=q2=q3=+Q and q4=q5=-Q. In unit-vector notation, what is the net electric field at the square's center? Express your answer in terms of k, Q, and d. q2 94 q1 X 8 93 marks the position of the square's center d 95
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