| ⇦ | 
| ⇨ |
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: - The focal length of the objective of a terrestrial telescope is 80 cm
- The time of reverberation of a room A is one second. What will be the time (in seconds)
- Two particles P and Q start from origin and execute simple harmonic motion along X-axis
- An LED is constructed from a p-n junction based on a certain semi-conducting
- At place on earth, the vertical component of earth’s magnetic field is √3 times
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The focal length of the objective of a terrestrial telescope is 80 cm
- The time of reverberation of a room A is one second. What will be the time (in seconds)
- Two particles P and Q start from origin and execute simple harmonic motion along X-axis
- An LED is constructed from a p-n junction based on a certain semi-conducting
- At place on earth, the vertical component of earth’s magnetic field is √3 times
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