Electronic Devices Question 186

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 $

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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} $



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