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A slab of thickness 2a, extending to infinity in x and y directions but contained within...

A slab of thickness 2a, extending to infinity in x and y directions but contained within –a < z < a, carries a non-uniform current with current density J = J0 · z^2 /a^2 pointing into the page where the y axis faces out of the page. Use Ampere’s Law to find the magnetic field B inside and outside of the slab.

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