Question: Two wires, parallel to a z axis and a distance 4r apart, carry equal currents i in opposite directions, as shown in Figure. A circular

Two wires, parallel to a z axis and a distance 4r apart, carry equal currents i in opposite directions, as shown in Figure. A circular cylinder of radius r and length L has its axis on the z axis, midway between the wires. Use Gauss' law for magnetism to derive an expression for the net outward magnetic flux through the half of the cylindrical surface above the xaxis.

Wire 17 Wire 2 2r -2,

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