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  • From the given transfer characteristic of a transistor in CE configuration, the value of power gain of this configuration is <img alt="10^{\mathrm{x}}, \text { for } \mathrm{R}_{\mathrm{B}}=10

From the given transfer characteristic of a transistor in CE configuration, the value of power gain of this configuration is 10^{\mathrm{x}}, \text { for } \mathrm{R}_{\mathrm{B}}=10 \mathrm{k} \Omega, \mathrm{R}_{\mathrm{C}}=1 \mathrm{k} \Omega. The value of x is _________.

 

Option: 1

3


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

\mathrm{Current\; gain}, \beta=\frac{\Delta I_C}{\Delta I_B}

\begin{aligned} & \beta=\frac{10 \mathrm{~mA}}{100 \mu \mathrm{A}} \\ & \beta=100 \end{aligned}

\begin{aligned} & \text { Power gain } \beta^2 \frac{R_C}{R_B} \\ & =10^4 \times \frac{1}{10} \\ & =10^3 \\ & \text { So, } x=3 \end{aligned}

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Suraj Bhandari

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