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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)
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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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
Transcribed Image Text: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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