A thick slab extending from z= =-a to z =+a and infinity along x and y carries a uniform volume current ? = ??̂ where J>0. A) What is the direction of the magnetic field above the slab and below the slab? B) Find the magnetic field as a function of z, both inside and outside the slab. Here I need to know the direction of the Amperian loop. Should it be counter-clockwise always?

A thick slab extending from z= =-a to z =+a and infinity along x and y carries a uniform volume current ? = ??̂ where J>0. A) What is the direction of the magnetic field above the slab and below the slab? B) Find the magnetic field as a function of z, both inside and outside the slab. Here I need to know the direction of the Amperian loop. Should it be counter-clockwise always?