دانلود کتاب DC Theory

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Table of Contents 1 - Electrical Basics Introduction Electrical Terms Current The Ampere Direction of Current Flow and Meters Measurement of Current The Volt Measuring Voltage The Ohm Using an Ohmmeter Measuring Resistance in a Circuit Ohm's Law of Proportionality Prefix Multipliers Electrical Power Safety and Arcs Summary Review Questions 2 - Elemental Electricity Introduction Matter and Atoms Electrical Properties of Materials Molecules and Compounds Sources of Electrical Energy Voltage Polarity Conductor Resistance Summary Review Questions 3 - Circuit Theory and Switches Introduction Wire vs. Conductor Circuit Concepts Switches Conductor Size Variation of Resistance with Area Material Type Effects on Conductor Resistance Determining the Total Resistance of a Conductor Circular Mils and Square Mils Conductor Resistance, Voltage Drop, and Wattage Loss Incandescent Lamps Summary Review Questions 4 - Series Circuits Introduction Diagrams Component Diagrams Schematic Symbols Types of Resistors Fixed Resistors Variable Resistors The Series Circuit Calculating Resistance in a Series Circuit Determining Proportional Relations in a Series DC Circuit Proportional Voltage Drop Wattage Calculations in Series DC Circuits Kirchhoff's Laws Voltage Sources Summary Review Questions 5 - DC Parallel Circuits Introduction Parallel Circuits: Definition and Principles Theory of Current in Parallel Calculating Total Resistance in Parallel Circuits Voltage Supply Multiple Voltage Sources Power Calculation in Parallel Circuits Summary Review Questions 6 - DC Combination Circuits Introduction Current in Combination Circuits Circuit Simplification Using Equivalent Components Solving Complex Circuits Calculating Voltage Drops in Combination Circuits Voltage Across a Simple Combination Circuit Finding Component Values Solving Circuit Values with Partial Information Power in Combination Circuits Summary Review Questions 7 - DC Circuit Analysis Introduction Voltage Dividers Law of Proportionality for Voltage Current Dividers The Superposition Theorem Kirchhoff's Laws Thevenin's Theorem Norton's Theorem Limiting Circuits by Wattage Rating Summary Review Questions 8 - Magnetism Introduction The Nature of Magnetism Theory of Magnetism Magnetic Reactions Magnetic Units of Measure Magnetic Flux Magnetic Shielding Summary Review Questions 9 - Electromagnetism Introduction Electricity and Magnetism Magnetic Direction Field Strength Electromagnetic Waves Magnetic Poles of Electromagnets Inducing Voltage with Magnetic Fields Factors Affecting Voltage Production Summary Review Questions 10 - DC Generators and Motors Introduction Calculating the Level of Induced Voltage DC Generators Parts of a Generator DC Generator Connections Self-Excited Shunt-Connected Generator Self-Excited Series Generator Self-Excited Compound Generators DC Motor Theory DC Shunt Motor Series Motor Compound Motor Permanent Magnet Motor Summary Review Questions Glossary Index