Heavily updated and expanded, this second edition of Adrian Waygood�s textbook provides an indispensable introduction to the science behind electrical engineering.
While fully matched to the electrical science requirements of the 2330 levels 2 and 3 Certificates in Electrotechnical Technology from City & Guilds (Electrical Installation), the main purpose of this book is to develop an easy understanding of the how and why within each topic. It is aimed at those starting careers in electricity and electronics, as well as any hobbyists, with an array of new material to reflect changes in the industry.
New chapters include:
Electrical drawings
Practical resistors
Measuring instruments
Basic motor action
Practical capacitors
Basic transformer theory
The electricity supply industry
�and more
The author details the historical context of each main principle and offers a wealth of examples, images and diagrams, all whilst maintaining his signature conversational and accessible style. There is also a companion website, with interactive multiple choice quizzes for each chapter and more, at www.routledge.com/cw/waygood
Table of Contents
Foreword. Introduction. SI System of Measurements. Electrical Schematic and Wiring Diagrams. The 'Electron Theory' of Electricity. Electric Current. Potential and Potential Difference. Resistance. Resistors. Conductors and Cables. Effect of Temperature-Change upon Resistance. Ohm�s Law of Constant Proportionality. Series, Parallel and Series-Parallel Circuits. Electrical Measurements. Cells and Batteries. Internal Resistance. Energy, Work, Heat and Power. Magnetism. Electromagnetism. Magnetic Circuits. Electromagnetic Induction. Motor Principle. Transformers. Capacitance. Capacitors. Geometry and Trigonometry Revision for A.C. Introduction to Alternating Current. Series Alternating-Current Circuits. Power in Alternating-Current Circuits. Parallel Alternating-Current Circuits. Summary of Equations Derived from Phasor Diagrams. Power Factor Improvement. Balanced Three-Phase A.C. Systems.