Magnetic Field of a Coil w/ N Spire: Determining Off-Axis Fields

AI Thread Summary
The discussion centers on calculating the magnetic field of a coil with N spires at a point P that is off the central axis. While the magnetic field on the central axis is well understood, determining it at other points requires more complex methods. One suggested approach is to expand the magnetic scalar potential using Legendre polynomials, while another involves elliptic integrals. A recommended resource for further study is "Classical Electromagnetism" by Franklin, specifically Section 7.10.1, which covers this topic in detail. Understanding these advanced methods is essential for accurate magnetic field calculations in non-central positions.
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Hi everybody. I have a question on a magnetic field of a coil with N spire . I know the magnetic fields on point P that it has a about distance form coil center and staies on the central axis of the coil. Is possibile to determinate the magnetic filed of the coil on point P that does not stay on central axis of the coil? For example the point P staies on axis that has a distance above o below from central axis of the coil.
Sorry if i do not write a perfect english...
Best regards
 
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That is done in advanced textbooks.
The simplest is to expand the magnetic scalar potential in Legendre polynomials.
Another method leads to elliptic integrals.
 
Hi clem. tanks for your replay..
Can you suggest some advanced textbook where i found this topic?
 
"Classical Electromagnetism" by Franklin does this in Sec. 7.10.1 using Legendre polynomials.
 

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