A wire, in the plane of this paper, is shaped into two arcs of a circle, one of radius R2 and the other of radius R1(R2 > R1), which are connected by radial lengths of wire to create a closed loop. terms of R1, R2, 0, and the current I. The point C, as indicated in theDetermine the magnetic field B at point Cfigure, is at the circular center of each of the arcs of wire.

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