# Ch18 HW4 - Ch18 HW4 F2010 12/17/10 9:17 PM WebAssign Ch18...

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12/17/10 9:17 PM Ch18 HW4 F2010 Page 1 of 5 http://www.webassign.net/v4cgisacoreth@ncsu/student.pl?b=20101218021720sacoreth@ncsu6657124101 Current Score : 26 / 26 Due : Friday, October 1, 2010 11:25 AM EDT 1. 6/6 points Question: MI3 18.8.X.052 Conventional current flows in a ring in the direction indicated in the diagram (if you stand at location A , on the +x axis, and look toward the ring, current flows clockwise). At each of the locations labeled by a letter, use the right hand rule to find the direction of the magnetic field at that location, due to the current in the ring. Location A -x -x Location B +x +x Location C -x -x Location D +x +x Location E +x +x Location F +x +x 2. 3/3 points Question: MI3 18.8.X.053 (a) A loop of wire carries a conventional current of 0.9 amperes. The radius of the loop is 0.09 m. Calculate the magnitude of the magnetic field at a distance of 0.33 m along the axis of the loop, from the center of the loop. B = 1.145e-7 1.14e-07 T (b) What would the magnitude of the magnetic field be at the same location if there were 100 loops of wire in a coil, instead of one loop? B = 1.145e-5 1.14e-05 T Ch18 HW4 F2010 (Homework) Stefan Coreth PY 208, section 002M, Fall 2010 Instructor: Laura I. Clarke Web Assign The due date for this assignment is past. Your work can be viewed below, but no changes can be made.

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12/17/10 9:17 PM Ch18 HW4 F2010 Page 2 of 5 http://www.webassign.net/v4cgisacoreth@ncsu/student.pl?b=20101218021720sacoreth@ncsu6657124101 3. 4/4 points Question: MI3 18.8.P.059
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## This note was uploaded on 11/10/2011 for the course PHYSICS 208m taught by Professor Beichner during the Fall '08 term at N.C. State.

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Ch18 HW4 - Ch18 HW4 F2010 12/17/10 9:17 PM WebAssign Ch18...

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