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.

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Stephen L. Herman--both an electrician and a teacher for more than 30 years--authored numerous popular textbooks on the subjects of electricity and mathematics. Now retired, Mr. Herman spent two decades as lead instructor for the Electrical Technology Curriculum at Lee College in Baytown, Texas, where he received an Excellence in Education Award from the Halliburton Education Foundation. He also taught at Randolph Community College in Asheboro, North Carolina, for nine years, and helped establish an electrical curriculum for Northeast Texas Community College in Mount Pleasant, Texas. Additional publications include DELMAR'S STANDARD TEXTBOOK OF ELECTRICITY, INDUSTRIAL MOTOR CONTROLS, UNDERSTANDING MOTOR CONTROLS, ELECTRIC MOTOR CONTROL, ELECTRONICS FOR ELECTRICIANS, ELECTRICAL WIRING INDUSTRIAL, ALTERNATING CURRENT FUNDAMENTALS, DIRECT CURRENT FUNDAMENTALS, ELECTRICAL STUDIES FOR TRADES, ELECTRICAL PRINCIPLES, ELECTRICAL TRANSFORMERS AND ROTATING MACHINES, EXPERIMENTS IN ELECTRICITY FOR USE WITH LAB VOLT, THE COMPLETE LABORATORY MANUAL FOR ELECTRICITY, and PRACTICAL PROBLEMS IN MATHEMATICS FOR ELECTRICIANS.

Preface Section 1 WHOLE NUMBERS Unit 1 Addition of Whole Numbers Unit 2 Subtraction of Whole Numbers Unit 3 Multiplication of Whole Numbers Unit 4 Division of Whole Numbers Unit 5 Combined Operations with Whole Numbers Section 2 COMMON FRACTIONS Unit 6 Addition of Common Fractions Unit 7 Subtraction of Common Fractions Unit 8 Multiplication of Common Fractions Unit 9 Division of Common Fractions Unit 10 Combined Operations with Common Fractions Section 3 DECIMAL FRACTIONS Unit 11 Addition of Decimal Fractions Unit 12 Subtraction of Decimal Fractions Unit 13 Multiplication of Decimal Fractions Unit 14 Multiplication of Decimal Fractions Unit 15 Decimal and Common Fraction Equivalents Unit 16 Combined Operations with Decimal Fractions Section 4 PERCENTS, AVERAGES, AND ESTIMATES Unit 17 Percent and Percentage Unit 18 Interest Unit 19 Discount Unit 20 Averages and Estimates Unit 21 Combined Problems with Percents, Averages, and Estimates Section 5 POWERS AND ROOTS Unit 22 Powers Unit 23 Roots Unit 24 Combined Operations with Powers and Roots Unit 25 Metric Measure and Scientific Notation Section 6 MEASURE Unit 26 Length Measure Unit 27 Area Measure Unit 28 Volume and Mass Measure Unit 29 Energy and Temperature Measure Unit 30 Combined Problems in Measure Section 7 RATIO AND PROPORTION Unit 31 Ratio Unit 32 Proportion Unit 33 Combined Problems with Ratio and Proportion Section 8 FORMULAS Unit 34 Representation in Formulas Unit 35 Rearrangement in Formulas Unit 36 General Simple Formulas Unit 37 Ohm's Law Formulas Unit 38 Power Formulas Unit 39 Combined Problems on Formulas Section 9 TRIGONOMETRY Unit 40 Right Triangles Unit 41 Trigonometric Functions Unit 42 Plane Vectors Unit 43 Rotating Vectors Unit 44 Combined Problems in Trigonometry Unit 45 Number Systems Appendix Glossary Answers to Odd-Numbered Problems

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(2004)

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