Electronic Devices Question 204
Question: For a triode, at $ V _{g}=-1 $ volt, the following observations were taken $ V _{p}=75V,I _{p}=2mA $ , $ V _{p}=100V,I _{p}=4mA $ . The value of plate resistance will be
[MP PMT 1989]
Options:
A) 25 kW
B) 20.8 kW
C) 12.5 kW
D) 100 kW
Show Answer
Answer:
Correct Answer: C
Solution:
$ r _{p}=\frac{{V _{p _{1}}}-{V _{p _{2}}}}{{I _{p _{1}}}-{I _{P _{2}}}}=\frac{75-100}{(2-4)\times {{10}^{-3}}} $ =12.5 x $10^3W$ =12.5kW.
