| ⇦ | 
| ⇨ |
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: - A parallel plate capacitor has 91 plates, all are identical and arranged with same
- The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down
- One milligram of matter on convertion into energy will give
- An ideal black body is equivalent to
- A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A parallel plate capacitor has 91 plates, all are identical and arranged with same
- The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down
- One milligram of matter on convertion into energy will give
- An ideal black body is equivalent to
- A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V
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