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A long, straight wire carries a current of 1.7 A in the +z direction and lies...

A long, straight wire carries a current of 1.7 A in the +z direction and lies along the line x = +3.0 cm, y = 0. A second such wire carries a current of 1.7 A in the +z direction and lies along the line x = -3.0 cm, y = 0. Find (a) the magnetic field at a point P on the y axis at y = 6.0 cm (-9.1 x 10-6 T i) and (b) the force between the 2 wires.

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