PDA

View Full Version : transistor ?


cowgiljl
Mar13-04, 05:44 PM
The emitter current in a certian npn transitor is 8 mA. If .8% of the minority carrier injected into the base recombing with the holes, find the base current , collector current and the exact value of alpha

i am not sure how to get this started

thanks

joe

cowgiljl
Mar14-04, 04:45 PM
still struggling and REALLY[*(] don't know how to go about this problem

thanks
joe

Guybrush Threepwood
Mar15-04, 01:53 AM
As you know IE = IB + IC
From the text I would gess that IB = 0.8% from IC, so just substitute in the first equation and you should find alpha