Question

If α = 0.995, I_E = 10 mA and I_co= 0.5 μA then I_CEO will be
1. 25 μA
2. 100 μA
3. 10.1 mA
4. 0.5 mA

Answer 1

Correct Answer - Option 2 : 100 μA

Given,

α = 0.995

I_E = 10 mA

I_co = 0.5 μA

I_CEO = (1 + β) I_CBO

\(\beta = \frac{{0.995}}{{1 - 0.995}} \) 

= 199

I_CBO = (1 + 199) 0.5

99.5 μA ≈ 100 μA