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In a semiconductor, the energy gap between valence band and conduction band is about
a)10 eV
b)5 eV
c)1 eV
d)15 eV
Correct answer is option 'C'. Can you explain this answer?
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In a semiconductor, the energy gap between valence band and conduction...
In semiconductors, the forbidden gap between the valence band and conduction band is very small. It has a forbidden gap of about 1 electron volt (eV).
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In a semiconductor, the energy gap between valence band and conduction...
In the semiconductor, as the temperature increases the valence electron gain enough energy to jump from valence band to the conduction band. Thus , the band gap in semiconductor is approximately 1eV. Hence 1eV is the correct answer.
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In a semiconductor, the energy gap between valence band and conduction...
Forbidden Energy Gap in Semiconductors
Semiconductor
- A semiconductor is a material with electrical conductivity between that of a conductor and an insulator.
- The conductivity of a semiconductor can be controlled by adding impurities or by applying an electric field.
Forbidden Energy Gap
- In a semiconductor, there is a forbidden energy gap between the valence band and the conduction band.
- The valence band is the highest energy band that is completely filled with electrons.
- The conduction band is the lowest energy band that is partially filled or empty.
- The forbidden energy gap is the energy difference between the valence band and conduction band.
- Electrons in the valence band cannot move to the conduction band unless they gain enough energy to overcome the forbidden energy gap.
Energy Gap in Semiconductors
- The value of the forbidden energy gap in semiconductors varies depending on the material.
- In general, the forbidden energy gap in semiconductors is smaller than that of insulators, but larger than that of conductors.
- The value of the forbidden energy gap is an important factor in determining the electrical properties of a semiconductor.
- A smaller energy gap means that electrons can more easily move from the valence band to the conduction band, resulting in higher conductivity.
- A larger energy gap means that fewer electrons can move to the conduction band, resulting in lower conductivity.
Answer
- The correct answer is option 'C', which states that the forbidden energy gap in semiconductors is about 1 eV.
- This value is typical for many common semiconductor materials, such as silicon and germanium.
- The relatively small value of the energy gap in semiconductors allows for precise control of their conductivity through the addition of impurities or by applying an electric field.
Semiconductor
- A semiconductor is a material with electrical conductivity between that of a conductor and an insulator.
- The conductivity of a semiconductor can be controlled by adding impurities or by applying an electric field.
Forbidden Energy Gap
- In a semiconductor, there is a forbidden energy gap between the valence band and the conduction band.
- The valence band is the highest energy band that is completely filled with electrons.
- The conduction band is the lowest energy band that is partially filled or empty.
- The forbidden energy gap is the energy difference between the valence band and conduction band.
- Electrons in the valence band cannot move to the conduction band unless they gain enough energy to overcome the forbidden energy gap.
Energy Gap in Semiconductors
- The value of the forbidden energy gap in semiconductors varies depending on the material.
- In general, the forbidden energy gap in semiconductors is smaller than that of insulators, but larger than that of conductors.
- The value of the forbidden energy gap is an important factor in determining the electrical properties of a semiconductor.
- A smaller energy gap means that electrons can more easily move from the valence band to the conduction band, resulting in higher conductivity.
- A larger energy gap means that fewer electrons can move to the conduction band, resulting in lower conductivity.
Answer
- The correct answer is option 'C', which states that the forbidden energy gap in semiconductors is about 1 eV.
- This value is typical for many common semiconductor materials, such as silicon and germanium.
- The relatively small value of the energy gap in semiconductors allows for precise control of their conductivity through the addition of impurities or by applying an electric field.
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In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect answer is option 'C'. Can you explain this answer?
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In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect 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 In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect 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 In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect answer is option 'C'. Can you explain this answer?.
In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect 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 In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect 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 In a semiconductor, the energy gap between valence band and conduction band is abouta)10 eVb)5 eVc)1 eVd)15 eVCorrect answer is option 'C'. Can you explain this answer?.
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