What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω

⇦

⇨

What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω and load resistance is 24 Ω? Take β=0.6

Options

(a) 3.6
(b) 4.8
(c) 2.4
(d) 1.2

Correct Answer:

3.6

Explanation:

Input resistance Rᵢ = 4Ω

Load resistance Rʟ = 24Ω

Resistance gain = Rʟ / Rᵢ = 24Ω / 4Ω = 6

Current gain β = 0.6

Voltage gain = Current gain x Resistance gain

= 0.6 x 6 = 3.6

Related Questions:

1. A parallel plate condenser with a dielectric of dielectric constant K between the plates
2. A person can see clearly objects only when they lie between 50 cm and 400 cm from
3. An ideal spring with spring constant K is hung from the ceiling and a block of mass
4. Application of Bernoulli’s theorem can be seen in
5. A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground

Topics: Electronic Devices (124)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends