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Which of the following is not a semiconductor?
- a)Germanium
- b)Silicon
- c)Arsenic
- d)All of these
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is not a semiconductor?a)Germaniumb)Siliconc)A...
Arsenic is not a semiconductor.
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Understanding Semiconductors
Semiconductors are materials that have electrical conductivity between that of conductors and insulators. They are essential in electronic devices.
Key Properties of Semiconductors:
- Conductivity: Semiconductors can conduct electricity better than insulators but worse than conductors.
- Temperature Dependence: Their conductivity increases with temperature, unlike metals, where conductivity decreases with increased temperature.
Common Semiconductor Materials:
- Germanium (Ge): A classic semiconductor used in early transistors.
- Silicon (Si): The most widely used semiconductor in modern electronics, forming the basis of the majority of integrated circuits.
- Arsenic (As): While not a semiconductor itself, it can be used as a dopant to create n-type semiconductors when combined with silicon.
Why Arsenic is Not a Semiconductor:
- Arsenic is primarily known as a metalloid, not a semiconductor like germanium and silicon.
- It does not possess the intrinsic semiconductor properties needed for effective conductivity on its own.
Conclusion:
In summary, while germanium and silicon are both semiconductors, arsenic is not classified as one. Instead, it is used in semiconductor technology as a doping agent to enhance the properties of other semiconductor materials. Thus, the correct answer to the question is option 'C' (Arsenic).
Semiconductors are materials that have electrical conductivity between that of conductors and insulators. They are essential in electronic devices.
Key Properties of Semiconductors:
- Conductivity: Semiconductors can conduct electricity better than insulators but worse than conductors.
- Temperature Dependence: Their conductivity increases with temperature, unlike metals, where conductivity decreases with increased temperature.
Common Semiconductor Materials:
- Germanium (Ge): A classic semiconductor used in early transistors.
- Silicon (Si): The most widely used semiconductor in modern electronics, forming the basis of the majority of integrated circuits.
- Arsenic (As): While not a semiconductor itself, it can be used as a dopant to create n-type semiconductors when combined with silicon.
Why Arsenic is Not a Semiconductor:
- Arsenic is primarily known as a metalloid, not a semiconductor like germanium and silicon.
- It does not possess the intrinsic semiconductor properties needed for effective conductivity on its own.
Conclusion:
In summary, while germanium and silicon are both semiconductors, arsenic is not classified as one. Instead, it is used in semiconductor technology as a doping agent to enhance the properties of other semiconductor materials. Thus, the correct answer to the question is option 'C' (Arsenic).
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Which of the following is not a semiconductor?a)Germaniumb)Siliconc)Arsenicd)All of theseCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is not a semiconductor?a)Germaniumb)Siliconc)Arsenicd)All of theseCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following is not a semiconductor?a)Germaniumb)Siliconc)Arsenicd)All of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a semiconductor?a)Germaniumb)Siliconc)Arsenicd)All of theseCorrect answer is option 'C'. Can you explain this answer?.
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