Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 76

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78. For a common emitter circuit if $\frac{I_C}{I_E}=0.98$ then current gain for common emitter circuit will be

======= ####78. For a common emitter circuit if $\frac{I_C}{I_E}=0.98$ then current gain for common emitter circuit will be

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/semiconductor-electronics-materials-devices-and-simple-circuits/semiconductor-electronics-materials-devices-and-simple-circuits—result-question-76.md (a) 49

(b) 98

(c) 4.9

(d) 25.5

[2001]

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Answer:

Correct Answer: 78. (a)

Solution:

  1. (a) We have,

$ \beta=\frac{\alpha}{1-\alpha}=\frac{0.98}{1-0.98}=\frac{0.98}{0.02}=49 $