Physics 202 Quiz # 27 March 27, 2008

1. Two parallel conductors carry currents in opposite directions, as shown in the figure below. One conductor carries a current of 10.0 A. Point A is the midpoint between the wires, and point C is 5.00 cm to the right of the 10.0-A current. I is adjusted so that the magnetic field at C is zero. Find (a) the value of the current I and (b) the value of the magnetic field at A.

Physics 214 Quiz # 27 March 27, 2008

1. A cube of edge length _ = 2.5 cm is positioned as shown in the figure below. There is a uniform magnetic field throughout the region with components Bx = +5.0 T, By = +4.0 T, and Bz = +3.0 T. (a) Calculate the flux through the shaded face of the cube. (b) What is the total flux emerging from the volume enclosed by the cube (i.e., the total flux through all six faces)?