# Magnetic Field Calculation

by airbuzz
Tags: calculation, field, magnetic
 P: 34 I have two parallel plate electrodes in which flows a determined current J. I found that the magnetic field between the two electrodes is: $$B_z (y,z)=\frac{\mu J}{2\pi d}(\vartheta_1+\vartheta_2}$$ (see attached figure) This comes form the field generated by a plate that is: $$B_z (y,z)=\frac{\mu J}{2\pi d}\vartheta$$ Does anybody knows from where come this formula and how to demonstrate it?? I´m just fighting against Maxwell´s equations, but they are winning... Attached Thumbnails
 P: 64 Can you explain $$\vartheta[\tex] means?  P: 34 it is a TeX command to write theta in that way. \theta [tex]\Rightarrow\,\,\theta$$ \vartheta $$\Rightarrow\,\,\vartheta$$