Question:-
Common Data Questions:

Consider the common emitter amplifier shown below with the following circuit parameters:
b=100, gm=0.3861 A/V, r0=¥ , rp=259 W, Rs=1k W, RB=93K W, Rc=250 W, RL=1k W, C1=¥ and C2=4.7mF.


The resistance seen by the source Vs is
Option (A)
258 ohm
Option (B)
1258 ohm
Option(C)
93 K ohm
Option(D)
¥
Correct Option:
(B)
Question Solution:
Zs = Rs + (RB||Rre)
Rc = 2.475
= 1.258kv

question-answer-faq-2187