The figure below shows, in cross section, four wires that are parallel, straight and very long. The currents in the wires are as follows: i₁ =285 A, i2 = 203 A, i3 = 94.0 A, and i4 = 73.0 A. The distance shown is 0.0510 m. What is the magnitude of the force per unit length on wire 3? i N/m y 000 3 4 d d > 2 d d ४

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