Question

In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 27 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?

中一中 十al

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Answer #1

+ 0 bu c3 B Here a = 27cm = 0.270 I = 23 A. a = 0.19092m AO=BO= 2o=co= Mow magnetic field at o due to wire I is 2 elo I = 2x1

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