Practical Problems in Mathematics for Electrician

by Herman, Stephen L.

• ISBN13: 9781401890858
• ISBN10: 1401890857
• Edition: 7th
• Format: Paperback
• Copyright: 2004-11-09
• Publisher: CENGAGE Delmar Learning

Summary

Now in its seventh edition, Practical Problems in Mathematics for Electricians contains 45 instructional units featuring updated materials, examples, and expanded mathematical operations for students and trainees of the electrical trade. Coverage begins with simple addition and subtraction of whole numbers and progresses through basic algebra and trigonometry, developing readers' awareness of electrical symbols, basic circuits, component terminology, and calculator use for success on the job. Word problems designed to encourage the use of logical deduction are just one of the hallmarks of this tried and true guidebook that provides the mathematical background students need to succeed in the electrical field. Explanations at the beginning of each unit foster a better understanding of the concepts being presented; while problems related to electricity help develop an appreciation for electrical terms and practices.

Table of Contents

Preface	vii
To the Student	ix
SECTION 1 WHOLE NUMBERS	1	(22)
Addition of Whole Numbers	1	(4)
Subtraction of Whole Numbers	5	(5)
Multiplication of Whole Numbers	10	(4)
Division of Whole Numbers	14	(4)
Combined Operations with Whole Numbers	18	(5)
SECTION 2 COMMON FRACTIONS	23	(22)
Addition of Common Fractions	23	(7)
Subtraction of Common Fractions	30	(4)
Multiplication of Common Fractions	34	(4)
Division of Common Fractions	38	(3)
Combined Operations with Common Fractions	41	(4)
SECTION 3 DECIMAL FRACTIONS	45	(22)
Addition of Decimal Fractions	45	(5)
Subtraction of Decimal Fractions	50	(4)
Multiplication of Decimal Fractions	54	(3)
Division of Decimal Fractions	57	(3)
Decimal and Common Fraction Equivalents	60	(4)
Combined Operations with Decimal Fractions	64	(3)
SECTION 4 PERCENT, AVERAGES, AND ESTIMATES	67	(16)
Percent and Percentage	67	(4)
Interest	71	(3)
Discount	74	(3)
Averages and Estimates	77	(3)
Combined Problems on Percents, Averages, and Estimates	80	(3)
SECTION 5 POWERS AND ROOTS	83	(16)
Powers	83	(3)
Roots	86	(5)
Combined Operations with Powers and Roots	91	(2)
Metric Measure and Scientific Notation	93	(6)
SECTION 6 MEASURE	99	(28)
Length Measure	99	(8)
Area Measure	107	(6)
Volume and Mass Measure	113	(8)
Energy and Temperature Measure	121	(4)
Combined Problems on Measure	125	(2)
SECTION 7 RATIO AND PROPORTION	127	(8)
Ratio	127	(2)
Proportion	129	(3)
Combined Operations with Ratio and Proportion	132	(3)
SECTION 8 FORMULAS	135	(32)
Representation in Formulas	135	(4)
Rearrangement in Formulas	139	(4)
General Simple Formulas	143	(10)
Ohm's Law Formulas	153	(7)
Power Formulas	160	(3)
Combined Problems on Formulas	163	(4)
SECTION 9 TRIGONOMETRY	167	(38)
Right Triangles	167	(4)
Trigonometric Functions	171	(9)
Plane Vectors	180	(7)
Rotating Vectors	187	(4)
Combined Problems in Trigonometry	191	(3)
Number Systems	194	(11)
Appendix	205	(8)
Glossary	213	(4)
Answers to Odd-Numbered Problems	217