| ⇦ | 
| ⇨ |
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: - Two identical thin plano-convex glass lenses (refractive index 1.5) each having
- All components of the electromagnetic spectrum in vacuum have the same
- In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
- The additional energy that should be given to an electron to reduce its de-Broglie
- A cell of emf E and internal resistance r supplies current for the same time
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two identical thin plano-convex glass lenses (refractive index 1.5) each having
- All components of the electromagnetic spectrum in vacuum have the same
- In one dimensionsal motion,instantaneous speed v statisfies 0⦤v⦤vₒ
- The additional energy that should be given to an electron to reduce its de-Broglie
- A cell of emf E and internal resistance r supplies current for the same time
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