Assume that the conductivity of a pure semiconductor at an applied electric field of 450 mV/m is 2.75 X 1013/2-cm. Given that the drift velocity of electrons is 0.135 m/s and that of holes is 0.048 m/s, determine the density of the charge carriers per cubic meter in this material.

Assume that the conductivity of a pure semiconductor at an applied electric field of 450 mV/m is 2.75 X 1013/2-cm. Given that the drift velocity of electrons is 0.135 m/s and that of holes is 0.048 m/s, determine the density of the charge carriers per cubic meter in this material.

Delmar's Standard Textbook Of Electricity

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Author:Stephen L. Herman

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Chapter1: Atomic Structure

Section: Chapter Questions

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

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Concept explainers

Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.

Question

Assume that the conductivity of a pure semiconductor at an applied electric field of 450 mV/m
is 2.75 X 1013/2-cm. Given that the drift velocity of electrons is 0.135 m/s and that of holes is
0.048 m/s, determine the density of the charge carriers per cubic meter in this material.

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