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) 2×105 mho

B) 2×104 mho

C) 500 mho

D) 2×10−3 mho

Show Answer

Answer:

Correct Answer: D

Solution:

Using μ=rp×gm
⇒gm=2010×103=2×10−3 .

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