The Fermi energy for a sample of germanium is 0.30 eV below the conduction band energy Ec at T = 400K. Calculate the thermal equilibrium electron concentration at T = 400K. A) 7.21 x 1015 cm−³ B) 1.83 x 10¹7 cm-³ C) 1.66 x 1018 cm-3 D) 2.68 x 1015 cm-³ E) 6.79 x 10¹6 cm-3 F) 6.17 x 1017 cm-3

The Fermi energy for a sample of germanium is 0.30 eV below the conduction band energy Ec at T = 400K. Calculate the thermal equilibrium electron concentration at T = 400K. A) 7.21 x 1015 cm−³ B) 1.83 x 10¹7 cm-³ C) 1.66 x 1018 cm-3 D) 2.68 x 1015 cm-³ E) 6.79 x 10¹6 cm-3 F) 6.17 x 1017 cm-3

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

The Fermi energy for a sample of germanium is
0.30 eV below the conduction band energy Ec
at T = 400K. Calculate the thermal equilibrium
electron concentration at T = 400K.
A) 7.21 x 1015 cm-3
B) 1.83 x 10¹7 cm-3
C) 1.66 x 1018 cm-3
D) 2.68 × 10¹5 cm-³
E) 6.79 x 1016 cm-3
F) 6.17 x 1017 cm-3

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