A long wire lies along thex-axis and carries a current in the positivex-direction with magnitudeIx= 90 A. A second long wire lies along they-axis and carries a current in the positivey-direction withmagnitudeIy= 45 A. A third wire lies along thez-axis and carries a current in the positivez-directionwith magnitudeIz= 50 A. Determine the magnitude of the net magnetic field in thexy-plane at thepointr= (0.030ˆı+ 0.040ˆ) m. (Answer 2.5 G)
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