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A uniformly doped npn bipolar transistor has following parameters:
NE = 1018 cm-3 NB = 5 x 1016 cm-3,
Nc = 2 x 1019 cm-3,
DE = 8 cm2 /s , DB = 15 cm2 /s , Dc = 14 cm2 /s
xE = 0.8 μm, xB = 0.7 μm
The emitter injection efficiency γ is 
  • a)
    0.999
  • b)
    0.977
  • c)
    0.982
  • d)
    0.934
Correct answer is option 'B'. Can you explain this answer?
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A uniformly doped npn bipolar transistor has following parameters:NE =...
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A uniformly doped npn bipolar transistor has following parameters:NE =...
It seems like there is a parameter missing in your question after "xE = 0.8". Can you please provide the missing parameter or clarify your question?
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A uniformly doped npn bipolar transistor has following parameters:NE = 1018 cm-3 NB = 5 x 1016 cm-3,Nc= 2 x 1019 cm-3,DE = 8 cm2/s , DB = 15 cm2 /s , Dc= 14 cm2 /sxE = 0.8 μm, xB= 0.7 μmThe emitter injection efficiency γ isa)0.999b)0.977c)0.982d)0.934Correct answer is option 'B'. Can you explain this answer?
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