| ⇦ | 
| ⇨ |
The input resistance of a silicon transistor is 100 W. Base current is changed by 40 µA which results in a change in collector current by 2mA. This transistor is used as a common emitter amplifier with a load resistance of 4 KΩ. The voltage gain of the amplifier is:
Options
(a) 2000
(b) 3000
(c) 4000
(d) 1000
Correct Answer:
2000
Explanation:
Voltage gain (Aᵥ) = Vₒᵤₜ / Vᵢₙ = Iₒᵤₜ / Iᵢₙ x Rₒᵤₜ / Rᵢₙ
Aᵥ = (2 x 10⁻³ / 40 x 10⁻⁶) x (4 x 10³ / 100)
= 2 x 100 = 2000
Related Questions: - A wheel is rotating at 900 rpm about its axis.When the power is cut-off it
- A particle moving in a straight line with uniform acceleration is observed
- A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- Which of the following phenomenon exhibited the particle nature of light?
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A wheel is rotating at 900 rpm about its axis.When the power is cut-off it
- A particle moving in a straight line with uniform acceleration is observed
- A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- Which of the following phenomenon exhibited the particle nature of light?
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