Two very long parallel wires in the xy -plane, a distance 2 a apart, are paralle
ID: 2149020 • Letter: T
Question
Two very long parallel wires in thexy-plane, a distance 2aapart, are parallel to they-axis and carry equal currentsIas shown in the figure. The +zdirection points perpendicular to thexy-plane in a right-handed coordinate system. If the left current flows in the +ydirection and the right current flows in the-ydirection, which one of the graphs shown in the figure below best represents thezcomponent of the net magnetic field, in thexy-plane, as a function ofx? (Caution:These graphs arenotmagnetic field lines.)