Consider two slabs of current shown in the figure. Both slabs have thickness b in y direction and extend up to infinity in x and z directions. The common face of the two slabs is `y = 0` plane. The slab in the region `0 lt y lt d` has a constant current density `= J_(0)hat(k)` and the other slab in the region `– d lt y lt 0` has a constant current density `= J_(0) (–hat(k))`.
(a) Find magnetic field at `y = 0`
(b) Plot the variation of magnetic field (B) along the y axis.

Answer

`(a)B_(0)=mu_(0)J_(0)d`
`(##IJA_PHY_V02_C10_E01_035_A01##)`