(Solved): The diagrams below show three circuits consisting of straight radial lengths and concentric circul ...

The diagrams below show three circuits consisting of straight radial lengths and concentric circular arcs (either half- or quarter-circles of radii r and 2r). The circuits carry the same current in the indicated direction. 535 2 Rank the circuits according to the magnitude of the magnetic field produced at the center of curvature (the dot). B? B2 B3 O B? = B3 > B? O B? B? B3 = O B? = B? = B3 O B3 B1 B? O B? B? B3 > = O none of these