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# Capa8 - 1[1 point 10 tries Consider the current-carrying...

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1 . [1 point, 10 tries] Consider the current-carrying loop shown in the figure, formed of radial lines and segments of circles whose center are at point P. Assume that a=2.32 m, b=4.64 m and I=3.27 A. Find the magnitude of B at P. Answer: 7.38e-08 T 7 2 . [1 point, 10 tries] Three long, parallel conductors carry currents of I = 2.16 A. The figure below is an end view of the conductors, with each current coming out of the page. If a = 1.48 cm, determine the magnitude of the magnetic field at point A . Answer: 3.89E-05 T 7 3 . [1 point, 10 tries] Determine the magnitude of the magnetic field at point B . Answer: 1.46E-05 T 7 4 . [1 point, 10 tries] Determine the magnitude of the magnetic field at point C . Answer: 0.00E+00 T 7

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5 . [1 point, 10 tries] The magnetic field 39.0 cm away from a long, straight wire carrying current 1.99 A is 1.90 µT. At what distance is it 0.190 µT? Answer: 3.90E+02 cm 7 6 . [1 point, 10 tries] At one instant, the two conductors in a long household extension cord carry equal 1.99 A currents in opposite directions. The two wires are 3.03 mm apart. Calculate the magnetic field 39.0 cm way from the middle of the straight cord, in the plane of the two wires.
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Capa8 - 1[1 point 10 tries Consider the current-carrying...

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