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  4. In an experiment of CE configuration of n - p - n transistor, the transfer characteristics are observed as given in figure. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/a06f71639a5df94544e2f23a72b84000-.png /> If the input resistance is 200 Ω and output resistance is 60 Ω the voltage gain in this experiment will be

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Q. In an experiment of CE configuration of $n - p - n$ transistor, the transfer characteristics are observed as given in figure.
image
If the input resistance is $200\, \Omega$ and output resistance is $60 \,\Omega$ the voltage gain in this experiment will be ___

JEE MainJEE Main 2022Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Voltage Gain $=\frac{ I _{ C }}{ I _{ B }} \times \frac{ R _{0}}{ R _{ I }}=\frac{10 \times 10^{-3}}{200 \times 10^{-6}} \times \frac{60}{200}=15$