Question: Let two long parallel wires, a distance d apart, carry equal currents l in the same direction. One wire is at x = 0, the

Let two long parallel wires, a distance d apart, carry equal currents l in the same direction. One wire is at x = 0, the other is at x = d, Fig. 20-61. Determine B along the x axis between the wires as a function of x.

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