In an experiment of CE configuration of n-p-n transistor, the transfer characteristics are observed as given in figure.
If the input resistance is $200 \Omega$ and output resistance is $60 \Omega$ the voltage gain in this experiment will be $\_\_\_\_$
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Solution
Voltage Gain $=\frac{I_C}{I_B} \times \frac{R_0}{R_I}=\frac{10 \times 10^{-3}}{200 \times 10^{-6}} \times \frac{60}{200}=15$
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If the input resistance is $200 \Omega$ and output resistance is $60 \Omega$ the voltage gain in this experiment will be $\_\_\_\_$