There are two infinite slabs of charge, both of thickness d with the junction lying on the plane x = 0. The slab lying in the range 0 lt x lt d has a uniform charge density `+rho` and the slab lying in the region – d lt x lt 0 has uniform charge density `-rho`. Find the Electric field everywhere and plot its variation along the x axis. Note: This can be used to model the variation of electric field in the depletion layer of a p – n junction.

There are two infinite slabs of charge, both of thickness d with the j

1.	There are two infinite slabs of charge, both of thickness d with the junction lying on the plane x = 0. The slab lying in the range 0 lt x lt d has a uniform charge density `+rho` and the slab lying in the region – d lt x lt 0 has uniform charge density `-rho`. Find the Electric field everywhere and plot its variation along the x axis. Note: This can be used to model the variation of electric field in the depletion layer of a p – n junction.
Answer» Correct Answer - `E=-(rho)/(epsilon_(0))(d+x)" "-d lt x le0` `=-(rho)/(epsilon_(0))(d-x)" "0lexltd` `=0" "\|x\|gt d`

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