First slide
Transistor
Question

In an NPN transistor circuit, the collector current is 10rnA.If 90% of the electrons emitted reach the collector, the emitter current (iE) and base current (iBare given by

Moderate
Solution

iC=90100×iE10=0.9×iEiE=11 mA Also, iE=iB+iC11-10=1 mA

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