Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are 0.54 m² V⁻¹ s⁻¹ and 0.18 m² V⁻¹ s⁻¹ respectively. If the electron and hole densities are equal to 3.6 × 10¹⁹ m⁻³ the conductivity of germanium is
A
4.15 S m⁻¹
B
2.12 S m⁻¹
C
1.13 S m⁻¹
D
5.6 S m⁻¹

Question

Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are 0.54 m² V⁻¹ s⁻¹ and 0.18 m² V⁻¹ s⁻¹ respectively. If the electron and hole densities are equal to 3.6 × 10¹⁹ m⁻³ the conductivity of germanium is

A

4.15 S m⁻¹

B

2.12 S m⁻¹

C

1.13 S m⁻¹

D

5.6 S m⁻¹

Accepted Answer

2.12 S m⁻¹

Answer

4.15 S m⁻¹

Answer

1.13 S m⁻¹

Answer

5.6 S m⁻¹

STANDARD Physics Conductivity MCQ Question

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