Question

The typical transfer characteristics 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 ________.

Answer 1

$V_{gain} = \text{Current gain} \times \frac{R_L}{R_t}$

= $\frac{ΔI_c}{ΔI_B} \times \frac{R_L}{R_t}$

= $\frac{5 \times 10^{-3}}{100 \times 10^{-6}} \times\frac{ 2 \times 10^3}{0.5 \times 10^3}$

= $\frac{10}{0.5} \times 10$

= $200$