1.

When current gain and emittor current are given how to calculate base current

Answer»

related to bipolar junction transistor in the common EMITTER  configuration.  The CURRENT GAIN is defined as α, which is usually around 50.  A small DC current in  the base of the transistor triggers a high current in the collector region which flows TOWARDS the emitter.  The base is less dop ed and collector is heavily dop ed with impurities.Current gain = collector current / base current                   =  [ emitter current - base current ] / base current                   = emitter current / base current - 1base current =  emitter current / [ current gain + 1 ]



Discussion

No Comment Found

Related InterviewSolutions