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Q.

The typical transfer characteristic of a transistor in CE configuration is shown in figure. A load resistor of $2 kΩ$ is connected in the collector branch of the circuit used. The input resistance of the transistor is $0.50 kΩ$ . The voltage gain of the transistor is

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answer is 200.

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Detailed Solution

Current gain in C-E configuration

$\begin{array}{l} \Rightarrow β = \frac{{ΔI}_{C}}{{ΔI}_{B}} \\ R_{C} = 2 kΩ, R_{B} = 0 .50 kΩ \\ Voltage gain = \frac{{ΔI}_{C} R_{C}}{{ΔI}_{B} R_{B}} = \frac{5 \times 10^{- 3}}{100 \times 10^{- 6}} \times \frac{2}{0 .5} \\ = \frac{10^{- 2}}{5 \times 10^{- 5}} = \frac{1000}{5} = 200 \end{array}$

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The typical transfer characteristic of a transistor in CE configuration is shown in figure. A load resistor of 2 kΩ is connected in the collector branch of the circuit used. The input resistance of the transistor is 0.50 kΩ. The voltage gain of the transistor is