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Questions and Answers
What is the density of electrons in the semiconductor?
What is the density of electrons in the semiconductor?
- 1 x 10^11 cm-3
- 5 x 10^12 cm-3
- 8 x 10^13 cm-3 (correct)
- 3 x 10^14 cm-3
Which equation is used for calculating the conductivity of the semiconductor?
Which equation is used for calculating the conductivity of the semiconductor?
- σ = nμ_n - pμ_p
- σ = q(nμ_n + pμ_p) (correct)
- σ = nμ_n + pμ_p
- σ = (n + p)μ
What is the mobility of the holes in the semiconductor?
What is the mobility of the holes in the semiconductor?
- 2.3 x 10^4 cm2/V-s
- 200 cm2/V-s
- 100 cm2/V-s (correct)
- 1000 cm2/V-s
How does hole density compare to electron density in this semiconductor?
How does hole density compare to electron density in this semiconductor?
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Which of the following values represents the mobility of electrons?
Which of the following values represents the mobility of electrons?
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Study Notes
Semiconductor Conductivity Calculation
- Semiconductor conductivity is calculated using the densities of both electrons and holes, along with their respective mobilities.
- The provided data includes:
- Electron density: 8 x 1013 cm-3
- Hole density: 5 x 1012 cm-3
- Electron mobility: 2.3 x 104 cm2/V-s
- Hole mobility: 100 cm2/V-s
- The formula for conductivity is not provided in the text.
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Description
Test your understanding of semiconductor conductivity calculations in this quiz. You will need to apply the concepts of electron and hole densities, along with their mobilities. Make sure to familiarize yourself with the necessary formulas for effective problem-solving.
