Question

In a common emitter transistor amplifier the audio signal voltage across the collector is `3 V`. The resistance of collector is `3 kOmega`. If current gain is `100` and the base resistance is `2 kOmega`, the voltage and power gain of the amlifier is :
A. `15` and `200`
B. `150` and `15000`
C. `20` and `2000`
D. `200` and `1000`

Answer 1

Correct Answer - B
`A_(V)=beta(R_(L))/(R_(i n))=100xx3/2=150`
`A_(p)=beta^(2)(R_(L))/(R_(i n))=100xx150=15000`