| ⇦ | 
| ⇨ |
Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations of 1.5×10⁺¹⁶ m⁻³. Dopping by indium, nh increases to 3×10²² m⁻³. What is nₑ in doped Si?
Options
(a) 2.5×10⁹ m⁻³
(b) 5.5×10⁹ m⁻³
(c) 7.5×10⁹ m⁻³
(d) 6×10⁷ m⁻³
Correct Answer:
7.5×10⁹ m⁻³
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A ray of light passes from a medium A having refractive index 1.6 to the medium
- In Young’s double slit experiment, the wavelength of the light used is doubled
- Two identical cells of the same e.m.f. and same internal resistance
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A ray of light passes from a medium A having refractive index 1.6 to the medium
- In Young’s double slit experiment, the wavelength of the light used is doubled
- Two identical cells of the same e.m.f. and same internal resistance
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
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