Electronic Devices Question 222

Question: The amplification factor of a triode is 20. Its plate resistance is 10 kilo ohms. Mutual conductance is

[MNR 1992; Orissa JEE 2005]

Options:

A) $ 2\times 10^{5} $ mho

B) $ 2\times 10^{4} $ mho

C) 500 mho

D) $ 2\times {{10}^{-3}} $ mho

Show Answer

Answer:

Correct Answer: D

Solution:

Using $ \mu =r _{p}\times g _{m} $
$ \Rightarrow g _{m}=\frac{20}{10\times 10^{3}}=2\times {{10}^{-3}} $ .



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