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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
- Two rigid bodies A and B rotate with rotational kinetic energies Eᴀ and Eʙ
- A car of mass m is moving on a level circular track of radius R
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- Element ²³⁴U has 92 protons and 234 nucleons in its nucleus. It decays by
- A missile is fired for maximum range with an initial velocity of 20 m/s
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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