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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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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- 180⁰ phase difference is obtained when light ray is reflected from
- If the series limit of Lyman series for hydrogen atom is equal to the series limit
- Three solids of masses m₁,m₂ and m₃ are connected with weightless string
- Light of wavelength λ from a point source falls on a small circular obstacle
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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