Question

In the figure the four particles form a square of edge length a = 5.50 cm and have charges q1 = 7.48 nC, q2 = -21.4 nC, q3 = 21.4 nC, and q4 = -7.48 nC. What is the magnitude of the net electric field produced by the particles at the square's center?

42
a

Image Transcription

42 a

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