Semiconducting Devices Question 266
Question: In an amplifier the load resistance $ R _{L} $ is equal to the plate resistance $ (r _{p}) $ . The voltage amplification is equal to
[CPMT 1995]
Options:
A) $ \mu $
B) $ 2\mu $
C) $ \mu /2 $
D) $ \mu /4 $
Show Answer
Answer:
Correct Answer: C
Solution:
Voltage gain $ A _{v}=\frac{\mu }{1+\frac{r _{p}}{R _{L}}} $ , for $ r _{p}=R _{L} $
Therefore $ A _{v}=\frac{\mu }{2} $
