Macmillan LearningA set of wires arranged on the corners of a square of sidelength s each carry a different current, as shown in the figure.The wire in the lower left corner carries a constant current Iin the k-direction. The wire in the upper left corner carries acurrent I₁ = I k, the wire in the upper right corner carriesa current 7₂ = -127 k, and the lower right wire carries acurrent Ï3= -k.Determine the vector expression for the net magnetic forceFB per unit length L on the lower left wire using ijk unitvector notation. Express your answer in terms of thepermeability o of free space, s, I, and numerical constants.||

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