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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
- The magnetic flux linked with a coil at any instant t is given by ?, find emf
- The period of a simple pendulum inside a stationary lift is T. The lift accelerates
- The acceleration due to gravity near the surface of a planet of radius R and density d
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
- A body revolved around the sun 27 times faster than the earth. What is the ratio
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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