Answered: A piece of Si doped with 1016 cm-3…

A piece of Si doped with 1016 cm-3 Boron atoms. At T-300 °k, the hole concentration is (a) 10¹6 cm-3 O a с Ob (b) 104 cm-3 (c) 1020 cm-3 (d) 10¹2 cm-3

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 22RQ: What is the unit of measurement for the strength of a...

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Concept explainers

Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.

Question

A piece of Si doped with 1016 cm-3 Boron atoms. At T=300 °k, the hole
concentration is
(a) 10¹6 cm-3
a
Ob
d
(b) 104 cm-3
(c) 1020 cm-3
(d) 10¹2 cm-3

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