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An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?
- a)The holes go from the base region to emitter region
- b)The electrons go from the collector region to the base region
- c)The electrons go from the emitter region to the base region and then to collector region
- d)The electrons go from the base region to the collector region
Correct answer is option 'C'. Can you explain this answer?
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An n p n transistor is biased to work as an amplifier. Which of the fo...
**Explanation:**
In an n-p-n transistor, the base region is p-type and the emitter and collector regions are n-type. The biasing of the transistor determines the direction of current flow and the functioning of the transistor as an amplifier.
Here are the statements and their explanations:
a) The holes go from the base region to the emitter region:
- This statement is correct. In an n-p-n transistor, the base-emitter junction is forward-biased. As a result, the holes from the base region (p-type) move towards the emitter region (n-type) due to the potential difference. This movement of holes constitutes the base current.
b) The electrons go from the collector region to the base region:
- This statement is correct. In an n-p-n transistor, the collector-base junction is reverse-biased. The reverse-bias potential difference attracts the electrons from the collector region (n-type) towards the base region (p-type). This movement of electrons constitutes the collector current.
c) The electrons go from the emitter region to the base region and then to the collector region:
- This statement is incorrect. In an n-p-n transistor, the emitter-base junction is forward-biased. The forward-bias potential difference attracts the electrons from the emitter region (n-type) towards the base region (p-type). These electrons do not directly flow to the collector region. Instead, they combine with the holes in the base region, contributing to the base current.
d) The electrons go from the base region to the collector region:
- This statement is correct. After the electrons combine with the holes in the base region, they form a current called the base current. These electrons then move from the base region towards the collector region (n-type) due to the potential difference across the collector-base junction. This movement of electrons constitutes the collector current.
Therefore, the correct answer is option 'C' because it incorrectly states that the electrons go from the emitter region to the base region and then to the collector region. In reality, the electrons from the emitter region combine with the holes in the base region and do not directly flow to the collector region.
In an n-p-n transistor, the base region is p-type and the emitter and collector regions are n-type. The biasing of the transistor determines the direction of current flow and the functioning of the transistor as an amplifier.
Here are the statements and their explanations:
a) The holes go from the base region to the emitter region:
- This statement is correct. In an n-p-n transistor, the base-emitter junction is forward-biased. As a result, the holes from the base region (p-type) move towards the emitter region (n-type) due to the potential difference. This movement of holes constitutes the base current.
b) The electrons go from the collector region to the base region:
- This statement is correct. In an n-p-n transistor, the collector-base junction is reverse-biased. The reverse-bias potential difference attracts the electrons from the collector region (n-type) towards the base region (p-type). This movement of electrons constitutes the collector current.
c) The electrons go from the emitter region to the base region and then to the collector region:
- This statement is incorrect. In an n-p-n transistor, the emitter-base junction is forward-biased. The forward-bias potential difference attracts the electrons from the emitter region (n-type) towards the base region (p-type). These electrons do not directly flow to the collector region. Instead, they combine with the holes in the base region, contributing to the base current.
d) The electrons go from the base region to the collector region:
- This statement is correct. After the electrons combine with the holes in the base region, they form a current called the base current. These electrons then move from the base region towards the collector region (n-type) due to the potential difference across the collector-base junction. This movement of electrons constitutes the collector current.
Therefore, the correct answer is option 'C' because it incorrectly states that the electrons go from the emitter region to the base region and then to the collector region. In reality, the electrons from the emitter region combine with the holes in the base region and do not directly flow to the collector region.
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An n p n transistor is biased to work as an amplifier. Which of the fo...
Current flows from emitter region to base and then collector in forward biased p n junction transistor which is used as an amplifier.
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An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer?
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An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer?.
An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer?.
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ample number of questions to practice An n p n transistor is biased to work as an amplifier. Which of the following statements is not correct?a)The holes go from the base region to emitter regionb)The electrons go from the collector region to the base regionc)The electrons go from the emitter region to the base region and then to collector regiond)The electrons go from the base region to the collector regionCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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