
#1
Feb1112, 05:41 AM

P: 1,863

Hi
When solving BiotSavarts law for a current loop of radius R, the magnetic field on the axis of the loop is given by (in Tesla) [tex] B(z) = \mu_0I\frac{R^2}{(R^2+z^2)^{\frac{3}{2}}} [/tex] where I is the current through the loop. However, this derivation assumes that the loop has an infinitesimal thickness. But how is the "proper" way to take into account the fact that a current loops has a finite thickness? My book on Electrodynamics (Griffiths) does not address this issue, and it is something I have thought about for some time. Best, Niles. 


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