1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# For given feedback amplifier, identify type of feedback, feedback ratio β and voltage gain with feedback Avf Feedback β Avf (a) Voltage series 1920 −20 (b) Current series 1920 40021 (c) Voltage series 120 40021 ((d) Current series 120 −20

A
a
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
d
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
b
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
c
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is D cGiven feedback is voltage series Voltage gain without feedback V0Vi=25×10−3=400 Vf (feedback voltage) =voltage across 1kΩ) =V0(11+19)=V020 β=VfV0=120 Vc+Vf−Vs=0 Vc=Vs−Vf V0=AVs−AVf V0=AVs−AβV0 V0Vs=A1+Aβ =4001+400×120=40021

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Zener Diode
PHYSICS
Watch in App
Join BYJU'S Learning Program