Electronic Devices Question 214
Question: The amplification factor of a triode is 50. If the grid potential is decreased by 0.20 V, what increase in plate potential will keep the plate current unchanged
[RPMT 1999]
Options:
A) 5 V
B) 10 V
C) 0.2 V
D) 50 V
Show Answer
Answer:
Correct Answer: B
Solution:
$ \mu =-\frac{\Delta V _{p}}{\Delta V _{g}} $
$ \Rightarrow \Delta V _{p}=-\mu \times \Delta V _{g} $ =-50(-0.20) = 10V.
