Four charges(qı = +2q, q2 = +2q, q3 = +2q , and q4 = +q) are place at the corners of a square with side length of a = 1m. q = 2 x 10° c 42 a. What is the x component of the electric field at the center of the square? b. What is the y component of the electric field at the center of the square?
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