CH 17 HW 3 F2008

CH 17 HW 3 F2008 - CH 17 HW 3 F2008 10/30/08 11:39 PM...

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10/30/08 11:39 PM CH 17 HW 3 F2008 Page 1 of 3 http://www.webassign.net/v4cgiknbaker@ncsu/student.pl?z=20081031033835knbaker@ncsu152720237 CH 17 HW 3 F2008 (Homework) BAKER KRISTINE NICOLE PY 208M, section 004, Fall 2008 Instructor: Laura I. Clarke Web Assign Current Score: 30 out of 30 Due: Monday, September 29, 2008 12:30 PM EDT Description Magnetic field of currents Instructions Reading: Sec 17.7 The due date for this assignment is past. Your work can be viewed below, but no changes can be made. Extensions are no longer available for this assignment. (Automatic Extensions are only available within 2 days of the assignment due date.) View Key 1. 2/2 points A straight wire of length 0.68 m carries a conventional current of 0.4 amperes. What is the magnitude of the magnetic field made by the current at a location 2.9 cm from the wire? Use both the exact formula and the approximate formula to calculate the field. (a) result using exact formula B = 2.75e-6 T (b) result using approximate formula B = 2.76e-6 T 2. 21/21 points A wire through which a current is flowing lies along the x-axis as shown. Connecting wires which are
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CH 17 HW 3 F2008 - CH 17 HW 3 F2008 10/30/08 11:39 PM...

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