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two_infinite_current_sheets

# two_infinite_current_sheets - Two Infinite Current Sheets...

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Two Infinite Current Sheets Given: Find: m wires n / 980 ? 1 y x B A i L 17 . 0 ? 2 y x B ? 3 cm a 14 y x B A i R 17 . 0 ? 1 y x B cm x 5 . 17 1 ? 2 y x B cm x 7 2 ? 3 y x B cm x 28 3 ? L i Two infinite sheets of current flow parallel to the y - z plane. The left-hand sheet, which intersects the x -axis at x = 0, consists of an infinite array of wires parallel to the z -axis with a density n = 980 wires/m and a current per wire of I L = 0.17 A in the + z direction. The right-hand sheet, which intersects the x -axis at x = a = 14 cm, is identical to the left-hand sheet, except that it has a current per wire of I R = 0.17 A in the - z direction. (a) Calculate the y -components of the net magnetic field in the following places: x 1 = -17.5 cm, x 2 =7 cm, and x 3 = 28 cm. (The x - and z -components of the B-field are zero.) (b) Suppose the above configuration of currents is unchanged except that the direction of the current I R is reversed so that now I R also flows in the + z direction (the magnitude remains the same).

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