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posted by  Hawkeye2012 on 11/7/2009 2:18:49 AM  |  status: Closed  |  Earned Karma: 74

Physics Practice Test Question: 29.6

Course Textbook Chapter Problem Needs by
Calculus Based Physics Fundamentals of Physics Extended (8th) by Halliday, Resnick, Walker N/A N/A 11/8/2009 at 2:00:00 PM
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posted by christina.S on 11/7/2009 8:44:48 AM  |  status: Live
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Response Details:
We have :
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                B  =  μo  I  R2 / 2 Z3  
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Where Z  is the distance of the point in question fro the center of the loop.
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From the given diagrams :
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           The order of magnitude of Magnetic field at mid points of coils:
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             Coil 1   >  Coil 3 >  Coil 2
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In fig (2) :
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           The magnitude of magnetic filed due to upper coil is cancelled by that of the lower coil  as the directions are opposite.
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Hope this helps u!
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