The figure shows, in cross section, several conductors that carry currents through the plane of the figure. The currents have the magnitudes I₁ = 4.0 A, 1₂ = 6.0 A, and 13 = 2.0 A, and the directions shown. Four paths, labeled a through d, are shown. What is the line integral & B. di for each path? Each integral involves going around the path in the counterclockwise direction. Explain your answers. 40 d

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