How To Find Magnitude Of Force Per Unit Length In Wire

Question

Three long wires have current flowing perpendicular to the page with directions indicated in the figure. Wire 2 is located at the origin, wire 3 is at x = 2 m on the x-axis, and wire 1 is at y = 2 m on the y-axis. I i1 = 1A, i2 = 2A, i3 = 3A, what is the magnitude of the force per unit length on wire 2 due to the other two wires?

 

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    Giuseppe

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