please kindly help me
Three infinitely long, straight wires with distance d are placed in a row. The current flowing through each wire is I. Assuming that the radius of the wires is negligible (a) Find two spatial locations at which the magnetic field is zero. (b) Plot the magnetic field lines. (c) Supposing that the current in the middle wire changes to pposite direction, namely downwards, and then the middle wire moves an infinitesimal displacement (d), and other wires stay still. Find the dynamic equation for the middle wire. (Note: the dynamic equation is used to describe the relationship between the net force on the middle wire and the displacement ax), and identify qualitatively the motion in terms of the dynamic equation you have found
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