Semiconductor Principles Questions and Answers
The Semiconductor Principles form the foundation of modern electronics, explaining how materials like silicon and germanium conduct electricity. This section includes semiconductor aptitude questions and answers with explanations, focusing on topics like energy bands, doping, charge carriers, and PN junctions. Designed for aspirants preparing for GATE, ISRO, or DRDO exams, these questions help in understanding theoretical and practical aspects of semiconductors. Practice these semiconductor principle questions with answers to strengthen your grasp of electronics fundamentals and prepare effectively for competitive technical exams.
Semiconductor Principles
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63 questions
21. Electron pair bonding occurs when atoms:
- lack electrons
- share holes
- lack holes
- share electrons
23. What is a type of doping material?
- extrinsic semiconductor material
- pentavalent material
- n-type semiconductor
- majority carriers
24. Minority carriers are many times activated by:
- heat
- pressure
- dopants
- forward bias
25. If conductance increases as temperature increases, this is known as a:
- positive coefficient
- negative current flow
- negative coefficient
- positive resistance
26. Which of the following cannot actually move?
- majority carriers
- ions
- holes
- free electrons
27. What electrical characteristic of intrinsic semiconductor material is controlled by the addition of impurities?
- conductivity
- resistance
- power
- all of the above
28. The forward voltage drop for a germanium transistor is 0.7 V and for a silicon transistor is 0.3 V.
- TRUE
- FALSE
29. When a depletion region of a transistor is large the barrier voltage is also large.
- TRUE
- FALSE