Two long, straight, current carrying wires are situated in a traditional x-y-z coordinate system, where distances are in meters. Wire 1 lies along the z-axis and carries a current in the positive z-direction of ?1 = 4.00 ?. Wire 2 is parallel to wire 1, passing through the point (3, 3, 0), and carrying a current in the negative z-direction of ?2 = 3.00 ?. Determine the magnetic field at the point (2, 1, 0) in unit-vector notation.
magnetic field by current carrying wire is
B = uo I / ( 2 pi r )
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