Electronic Devices Question 217

Question: The amplification factor of a triode is 18 and its plate resistance is 8 x 103W. A load resistance of 104W is connected in the plate circuit. The voltage gain will be

[RPMT 2002]

Options:

A) 30

B) 20

C) 10

D) 1

Show Answer

Answer:

Correct Answer: C

Solution:

Voltage gain $ A _{V}=\frac{\mu }{1+\frac{r _{p}}{R _{L}}}=\frac{18}{1+\frac{8\times 10^{3}}{10^{4}}}=10 $ .



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