See attached file for graphs.
A thick slab extending from z=-a to z=+a carries a uniform volume current J=Jx (fig 5.41 attached). Find the magnetic field, as a function of z, both inside and outside the slab.© BrainMass Inc. brainmass.com March 4, 2021, 5:48 pm ad1c9bdddf
let the width of the slab is b.
Outside the slab: (|z| > a)
We draw a rectangle surrounding the slab (Ampere's circuit).
BY Ampere's ...
Complete formulas and calculations arrive at the answers to the problem.