Magnitude of the net magnetic field at the squares center

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In the figure 29-49, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 30 cm. The currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3, and each wire carries 19 A. What is the magnitude of the net magnetic field at the square's center?

Reference no: EM13564320

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