| ⇦ | 
| ⇨ |
A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω and an output impedance of 200Ω. The power gain of the amplifier is
Options
(a) 500
(b) 1000
(c) 1250
(d) 50
Correct Answer:
1250
Explanation:
Power gain = voltage gain x current gain
= Vₕ . Iₕ = V₀ / Vᵢ . I₀ / Iᵢ
= V₀² / Vᵢ² . Rᵢ / R₀ = 50 x 50 x 100/200
= 2500 / 2 = 1250
Related Questions: - Acceleration of a particle, executing SHM, at its mean position is
- A particle falls towards earth from infinity. Its velocity on reaching the earth
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- For a satellite moving in an orbit around the earth, the ratio of kinetic
- The string of a pendulum is horizontal.The mass of bob attached to it is m
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Acceleration of a particle, executing SHM, at its mean position is
- A particle falls towards earth from infinity. Its velocity on reaching the earth
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- For a satellite moving in an orbit around the earth, the ratio of kinetic
- The string of a pendulum is horizontal.The mass of bob attached to it is m
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
Leave a Reply