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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.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The self induced e.m.f. in a 0.1 H coil when the current in it is changing
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
- In cyclotron, for a given magnet, radius of the semicircle traced by positive ion
- A string in musical instrument is 50 cm long and its fundamental frequency is 800 Hz.
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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