Two very long, straight parallel wires carry currents of equ…

Two very long, straight parallel wires carry currents of equal magnitude, but opposite direction, perpendicular to the paper in the directions shown in the figure. The direction of the net magnetic field due to these two wires at point a, which is equidistant from both wires, is;  

The diagram below is of a triangular prism that has three re…

The diagram below is of a triangular prism that has three rectangular sides and two triangular sides. This prism is placed in a region of uniform magnetic field of magnitude 0.160 T directed in the positive x direction.  length ca = df = 0.5 m length cf = be = 2 m length cb = fe = 0.75 m