Subjective Type

The drift current in a p-n junction is $$20\cdot 0 \mu \,A$$. Estimate the number of electrons crossing a cross section per second in the depletion region.

Solution

Drift current =20μA=20×106A=20μA=20×106A .
Both holes and electrons are moving
So, no of electrons =20×10−62×1.6×10−19=6.25×1013=20×10−62×1.6×10−19=6.25×1013

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