The drift current in a p-n junction is 20.0 μA. Estimate the number of electrons crossing a cross section per second in the depletion region.
Drift current, Id = 20μA
Where, Ne= Number of electrons crossing a cross section per second
Nh= Number of holes crossing a cross section per second
e= magnitude of charge on an electron/hole = 1.6×10-19 C
Without any biasing applied on the junction, Ne = Nh = N
Id=2N×e
N=6.25×1013