Glencoe Physics: Principles and Problems, Student Edition
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN: 9780078807213
Author: Paul W. Zitzewitz
Publisher: Glencoe/McGraw-Hill
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Chapter 25, Problem 26A
To determine

To Explain: The reason iron is used in an armature.

Expert Solution & Answer
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Explanation of Solution

Introduction:

An armature is basically a piece of an electrical machine that is used to carry the electrical current. The windings of the armature are used to conduct AC even in the DC machines due to the action of the commutator that is used to reverse the direction of the current.

The soft iron concentrates the magnetic field and it allows it to reverse its direction. Soft iron is used in armature because it is ferromagnetic in nature which means there is a presence of the external magnetic field in which all the domains align together in the direction of the magnetic field. It increases the strength of the magnetic field.

Conclusion:

Hence, iron is used in an armature because it increases the magnetic strength of the field.

Chapter 25 Solutions

Glencoe Physics: Principles and Problems, Student Edition

Ch. 25.1 - Prob. 11SSCCh. 25.1 - Prob. 12SSCCh. 25.1 - Prob. 13SSCCh. 25.1 - Prob. 14SSCCh. 25.1 - Prob. 15SSCCh. 25.2 - Prob. 16PPCh. 25.2 - Prob. 17PPCh. 25.2 - Prob. 18SSCCh. 25.2 - Prob. 19SSCCh. 25.2 - Prob. 20SSCCh. 25.2 - Prob. 21SSCCh. 25.2 - Prob. 22SSCCh. 25.2 - Prob. 23SSCCh. 25 - Prob. 24ACh. 25 - Prob. 25ACh. 25 - Prob. 26ACh. 25 - Prob. 27ACh. 25 - Prob. 28ACh. 25 - Prob. 29ACh. 25 - Prob. 30ACh. 25 - Prob. 31ACh. 25 - Prob. 32ACh. 25 - Prob. 33ACh. 25 - Prob. 34ACh. 25 - Prob. 35ACh. 25 - Prob. 36ACh. 25 - Prob. 37ACh. 25 - Prob. 38ACh. 25 - Prob. 39ACh. 25 - Prob. 40ACh. 25 - Prob. 41ACh. 25 - Prob. 42ACh. 25 - Prob. 43ACh. 25 - Prob. 44ACh. 25 - Prob. 45ACh. 25 - Prob. 46ACh. 25 - Prob. 47ACh. 25 - Prob. 48ACh. 25 - Prob. 49ACh. 25 - Prob. 50ACh. 25 - Prob. 51ACh. 25 - Prob. 52ACh. 25 - Prob. 53ACh. 25 - Prob. 54ACh. 25 - Prob. 55ACh. 25 - Prob. 56ACh. 25 - Prob. 57ACh. 25 - Prob. 58ACh. 25 - Prob. 59ACh. 25 - Prob. 60ACh. 25 - Prob. 61ACh. 25 - Prob. 62ACh. 25 - Prob. 63ACh. 25 - Prob. 64ACh. 25 - Prob. 65ACh. 25 - Prob. 66ACh. 25 - Prob. 67ACh. 25 - Prob. 68ACh. 25 - Prob. 69ACh. 25 - Prob. 70ACh. 25 - Prob. 71ACh. 25 - Prob. 72ACh. 25 - Prob. 73ACh. 25 - Prob. 74ACh. 25 - Prob. 75ACh. 25 - Prob. 76ACh. 25 - Prob. 77ACh. 25 - Prob. 78ACh. 25 - Prob. 79ACh. 25 - Prob. 80ACh. 25 - Prob. 81ACh. 25 - Prob. 82ACh. 25 - Prob. 83ACh. 25 - Prob. 84ACh. 25 - Prob. 85ACh. 25 - Prob. 86ACh. 25 - Prob. 87ACh. 25 - Prob. 88ACh. 25 - Prob. 89ACh. 25 - Prob. 90ACh. 25 - Prob. 91ACh. 25 - Prob. 92ACh. 25 - Prob. 93ACh. 25 - Prob. 94ACh. 25 - Prob. 95ACh. 25 - Prob. 96ACh. 25 - Prob. 97ACh. 25 - Prob. 98ACh. 25 - Prob. 99ACh. 25 - Prob. 100ACh. 25 - Prob. 1STPCh. 25 - Prob. 2STPCh. 25 - Prob. 3STPCh. 25 - Prob. 4STPCh. 25 - Prob. 5STPCh. 25 - Prob. 6STPCh. 25 - Prob. 7STP
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