Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 44, Problem 1RQ
To determine
The reason for atoms of a conductor usually contains valence electrons.
Expert Solution & Answer
Explanation of Solution
Conductors are formed from materials which have large and heavy atoms. Most of materials which conducts are metals. Conductors are formed from the atoms which usually have one or more electrons in their valence shell.
An atom with only one valence electron is the best electrical conductor because of the loosely held electron orbit and it can be easily abandoned for current flow. Thus the conductors have electrons with one or two electrons in the valence shell.
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When an element has its proper complement of valence electrons, it is electrically _________; when an atom has more or fewer than that number, it is an ion and has an electric charge. The charge is ________ when extra electrons are present and ________ when some are missing.
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Chapter 44 Solutions
Understanding Motor Controls
Ch. 44 - Prob. 1RQCh. 44 - The atoms of a material used as an insulator...Ch. 44 - The two materials most often used to produce...Ch. 44 - Prob. 4RQCh. 44 - Prob. 5RQCh. 44 - How is an N-type material made?Ch. 44 - Which type of semiconductor material can withstand...Ch. 44 - All electronic components are formed from P-type...
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