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Semiconductor Conductivity Calculation Quiz

5 Questions

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Semiconductor Conductivity Calculation Quiz

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Questions and Answers

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?

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?

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?

<p>Hole density is lower than electron density.</p> Signup and view all the answers

Which of the following values represents the mobility of electrons?

<p>2.3 x 10^4 cm2/V-s</p> Signup and view all the answers

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.