In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 20 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 23 A. What is the magnitude of the net magnetic field at the square's center? Number Units

In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 20 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 23 A. What is the magnitude of the net magnetic field at the square's center? Number  Units

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In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 20 c m . 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 23 A . What is the magnitude of the net magnetic field at the square's center?
Number i Units

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