HW__12_P213_F08 - Physics 2213 Read: Homework #12 Chapter...

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1 Physics 2213 Homework #12 Fall 2008 Read: Chapter 28, intro, sections 28.2-28.7 For study: Chap. 28: Q's #Q28.2, 3, 4, 5, 6, 7, 8, 9, 10, 13; (not turned in) E's & P's: #28.15, 17, 23, 25, 29, 59, 63, 67, 81. To be prepared for your 2nd recitation class the week of November 17-21: #28.20 [Two Hikers] #28.27 [Lamp Cord Wires] #28.37 [Coaxial Cable] #28.42 [Solenoid Design] #1. [2 Wires] Two long parallel straight situated at x = D and -D wires carry equal electric currents I in the same direction perpendicular to this page, as shown. (a) What is the magnetic field at the origin? Please give your reasoning. (b ) What are the directions of the magnetic field at the points y = D and y = -D on the y-axis? Please illustrate how you obtained your answers with vector diagrams. (c) Find the strength of the magnetic field B(y) as a function of position y for points on the y-axis. Let B(y) be > 0 if the magnetic field has a component in the +x-direction and < 0 if it has a
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This note was uploaded on 08/27/2009 for the course PHYS 2213 taught by Professor Perelstein,m during the Fall '07 term at Cornell University (Engineering School).

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HW__12_P213_F08 - Physics 2213 Read: Homework #12 Chapter...

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