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Which of the following statement is/are true?
Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)
Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.
  • a)
     Both S1 and S2
  • b)
     Neither S1 nor S2
  • c)
     S1
  • d)
     S2
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statement is/are true?Statement (S1): Conductiv...
Conductivity of Silicon and Germanium
- Statement (S1) is true. The conductivity of silicon is indeed less than that of germanium at room temperature (300 K). This is because silicon has a higher energy band gap compared to germanium, making it a poorer conductor of electricity.

Effect of Temperature on Fermi Level
- Statement (S2) is false. As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials does not move towards the center of the forbidden energy band gap. Instead, the Fermi level shifts closer to the conduction band edge in N-type semiconductors and towards the valence band edge in P-type semiconductors. This shift is due to the increasing number of thermally generated charge carriers in the material.
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Which of the following statement is/are true?Statement (S1): Conductiv...
Silicon and germanium both have four valence electrons, but germanium will at a given temperature have more free electrons and a higher conductivity
  • Silicon is a widely used semiconductor for electronics because it can be used at much higher temperatures than germanium
  • As the temperature increase, more electrons will be moved out from below the Fermi level to above the Fermi level
  • If we the temperature the conductivity will increase due to thermal ionisation but the position of Fermi level will not change
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Which of the following statement is/are true?Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.a)Both S1 and S2b)Neither S1 nor S2c)S1d)S2Correct answer is option 'C'. Can you explain this answer?
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Which of the following statement is/are true?Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.a)Both S1 and S2b)Neither S1 nor S2c)S1d)S2Correct answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Which of the following statement is/are true?Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.a)Both S1 and S2b)Neither S1 nor S2c)S1d)S2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statement is/are true?Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.a)Both S1 and S2b)Neither S1 nor S2c)S1d)S2Correct answer is option 'C'. Can you explain this answer?.
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