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If a small amount of antimony is added to germanium crystal
Options
(a) it becomes a p-type semiconductor
(b) the antimony becomes an acceptor atom
(c) there will be more free electrons than holes in the semiconductor
(d) its resistance is increased
Correct Answer:
there will be more free electrons than holes in the semiconductor
Explanation:
When small amount of antimony (pentavalent) is added to germanium crystal then crystal becomes n-type semi condcutor. Therefore, there will be more free electron than holes in the semiconductor.
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- The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For photoelectric emission from certain metal the cut-off frequency is v
- The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be.
- Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
- what should be the velocity of an electron so that its momentum becomes equal
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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