Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Notes  >  Analog and Digital Electronics  >  Previous Year Questions- Small Signal Analysis

Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE) PDF Download

Q1: For an ideal MOSFET biased in saturation, the magnitude of the small signal current gain for a common drain amplifier is (2022)
(a) 0
(b) 1
(c) 100
(d) infinite
Ans:
(d)
Sol: For ideal MOSFET, iG = 0
Therefore, Current gain, A= is/i= ∞

Q2: The magnitude of the mid-band voltage gain of the circuit shown in figure is (assuming hfe of the transistor to be 100) (SET-1 (2014))
Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)(a) 1
(b) 10
(c) 20
(d) 100
Ans:
(d)
Sol: AC model,
Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)Zi = 10kΩ
Mid band voltage gain Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)

Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)∣Av∣ = 100  


Q3: In the single-stage transistor amplifier circuit shown in figure, the capacitor CE is removed. Then, the ac small-signal midband voltage gain of the amplifier (2001)
Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)(a) increases
(b) decreases
(c) is unaffected
(d) drops to zero
Ans:
(b)
Sol: Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)⇒ AV2 < AV1
The document Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE) is a part of the Electrical Engineering (EE) Course Analog and Digital Electronics.
All you need of Electrical Engineering (EE) at this link: Electrical Engineering (EE)
137 videos|143 docs|71 tests

Top Courses for Electrical Engineering (EE)

137 videos|143 docs|71 tests
Download as PDF
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Semester Notes

,

Free

,

Summary

,

Extra Questions

,

shortcuts and tricks

,

Previous Year Questions with Solutions

,

video lectures

,

practice quizzes

,

mock tests for examination

,

Exam

,

Viva Questions

,

Sample Paper

,

Important questions

,

Objective type Questions

,

MCQs

,

Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)

,

ppt

,

past year papers

,

Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)

,

pdf

,

study material

,

Previous Year Questions- Small Signal Analysis | Analog and Digital Electronics - Electrical Engineering (EE)

;