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A common emitter amplifier has a voltage gain of 50 , an input impedance of $100 \Omega$ and an output impedance of $200 \Omega$. The power gain the amplifier is
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2579 Upvotes
Verified Answer
The correct answer is:
1250
Voltage gain $=\beta \times$ impedance gain
$$
\Rightarrow \quad 50=\beta \times \frac{200}{100} \Rightarrow \beta=25
$$
Also, power gain $=\beta^2 \times$ impedance gain
$$
=(25)^2 \times \frac{200}{100}=1250
$$
$$
\Rightarrow \quad 50=\beta \times \frac{200}{100} \Rightarrow \beta=25
$$
Also, power gain $=\beta^2 \times$ impedance gain
$$
=(25)^2 \times \frac{200}{100}=1250
$$
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