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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
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A high altitude, a body explodes at rest into two equal fragments with one fragment
- A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it
- In Moseley’s law √ν=a(z-b), the values of the screening constant for K-series
- The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
- If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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