Example: (a) Calculate the drift velocity of electrons in silicon at room temperature and when the magnitude of the electric field is 500 V/m. (b) Under these circumstances, how long does it take an electron to traverse a 25-mm length of crystal? (a) Since the room temperature mobility of electrons is 0.14 m/V-s =(0.14 m'/V-s)(500 V/m)-70m/s (b) The time, t, required to traverse a given length, / (= 25 mm), is just t=1/VF25×10'm/70m/s-3.6 x 10 s

Example: (a) Calculate the drift velocity of electrons in silicon at room temperature and when the magnitude of the electric field is 500 V/m. (b) Under these circumstances, how long does it take an electron to traverse a 25-mm length of crystal? (a) Since the room temperature mobility of electrons is 0.14 m/V-s =(0.14 m'/V-s)(500 V/m)-70m/s (b) The time, t, required to traverse a given length, / (= 25 mm), is just t=1/VF25×10'm/70m/s-3.6 x 10 s

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter1: Atomic Structure

Section: Chapter Questions

Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?

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