Two wires, parallel to the z axis and distance 4r apart, carry equal currents I =0.65 A in opposite directions, as shown in Fig. 32-40.

Two wires, parallel to the z axis and distance 4r apart, carry equal currents I =0.65 A in opposite directions, as shown in Fig. 32-40. A circular cylinder of radius r and length L=8 cm has its axis on the z axis, midway between the wires. Use Gauss' law for electromagnetism to calculate the net outward magnetic flux through the half of the cylindrical surface above the x axis. (Hint: Find the flux through that portion of the xz plane that is within the cylinder. )