| ⇦ | 
| ⇨ |
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: - Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- The volume of a nucleus is directly proportional to
- In Young’s experiment, the third bright band for light of wavelength 6000Å
- The dimensions of Planck’s constant is same as that of
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- The volume of a nucleus is directly proportional to
- In Young’s experiment, the third bright band for light of wavelength 6000Å
- The dimensions of Planck’s constant is same as that of
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