| ⇦ | 
| ⇨ |
A transistor is operated in common-emitter configuration at Vᵥ = 2 V such that a change in the base current from 100 µA to 200 µA produces a change in the collector current from 5 mA to 10 mA. The current gain is
Options
(a) 100
(b) 150
(c) 50
(d) 75
Correct Answer:
50
Explanation:
∆Iₑ = ∆Iₘ + ∆Iₙ
β = ∆Iₙ / ∆Iₘ
∆Iₙ = (10 – 5)10⁻³ = 5 x 10⁻³ A
∆Iₘ = (200 – 100)10⁻⁶ = 100 x 10⁻⁶ A
β = 5 x 10⁻³ / 100 x 10⁻⁶ = 5/100 x 1000 = 50
Related Questions: - The product of pressure and volume hve thesame units as the product of
- The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
- Which of the following pairs is wrong
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The product of pressure and volume hve thesame units as the product of
- The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
- Which of the following pairs is wrong
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