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For a BJT , the common- base current ga...

For a BJT , the common- base current gain `alpha=0.98` and the collector base junction reverse bias saturation `I_(CO) = 0.6muA` . This BJT is connected in the commone emitter mode and operated in the active region with a base drive current `I_(B) =20muA` . The collector current `I_(C)` for this of operating is .

Text Solution

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`alpha=0.98` and `I_Co=0.6 muA`.
Collector current
`I_C=betaI_B+(1+beta)I_(Co)`
`beta(alpha)/(1-alpha)=(0.98)/(1-0.98)=49`
Thus,
`I_C=(49xx20)+(50xx0.6)=980+30=1010muA`
`I_C=1.01muA`
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