| ⇦ | 
| ⇨ |
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: - If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- By sucking through a straw, a student can reduce the pressure of his lungs
- When two small bubbles join to form a bigger one, energy is
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- The dimensional formula for Young’s modulus is
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- By sucking through a straw, a student can reduce the pressure of his lungs
- When two small bubbles join to form a bigger one, energy is
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- The dimensional formula for Young’s modulus is
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