Electricity

Electricity Made Simple covers the fundamental principles underlying every aspect of electricity. The book discusses current; resistance including its measurement, Kirchhoff’s laws, and resistors; electroheat, electromagnetics and electrochemistry; and the motor and generator effects of electromagnetic forces. The text also describes alternating current, circuits and inductors, alternating current circuits, and a.c. generators and motors. Other methods of generating electromagnetic forces are also considered.
The book is useful for electrical engineering students.

Preface

1 Current

Electrons

Current and Voltage

Ohm's Law

Simple Circuits

Summary

2 Resistance

Internal Resistance

Effect of Temperature

Temperature Coefficients

Resistivity

Resistivities of Metals

Fixed Resistors

Variable Resistors

Resistors in Series and in Parallel

Series-Parallel Circuits

Kirchhoff's Laws

Measurement of Resistance

Wheatstone Bridge

Summary

3 Electroheat

Joule's Law

Electricity Bills

Kilowatt-hour Meter

Heating Effect of Current

Fuses

Appliances

Summary

4 Electromagnetics

Domain Theory

Magnetic Fields

Electrical Units

Field Round a Conductor

Electromagnets

Magnetic Circuits

Hysteresis

Summary

5 Electrochemistry

Ions

Electrolysis of Sodium Chloride

Electrolysis of Water

Electroplating

Laws of Electrolysis

Batteries and Cells

Simple Cell

Electrode Potentials

Polarization

The Dry Cell

Storage Batteries

Summary

6 Electromagnetic Forces I: The Motor Effect

SI units and their C.G.S. equivalents

Direction of Magnetic Force

Moving-Coil Galvanometer

Electric Motors

Back E.M.F.

Summary

7 Electromagnetic Forces II: The Generator Effect

Induced E.M.F.

Lenz's Law

The Generator Principle

D.C. Generator

Self-Inductance

Magnitude of the Back E.M.F.

Mutual Inductance

Eddy Currents

Summary

8 Alternating Current

The Transformer

Power Transmission

Three-Phase Current

Skin Effect

Resistance in A.C. Circuits

R.M.S. Values

Hot-Wire Ammeter

Rectification of A.C.

Half-Wave Rectifier

Full-Wave Rectifier

Bridge Circuit

Summary

9 Capacitors and Inductors

Capacitors

Capacitors in Series

Capacitors in Parallel

Capacitors in A.C. Circuits

Inductors

Inductors in Series and in Parallel

Inductive Reactance

Smoothing Circuits

Crossover Network

Reactance and Frequency

Summary

10 Alternating-Current Circuits

R-L-C Series Circuit

Impedance

Parallel Circuits

Power in A.C. Circuits

Resonance

Series Resonant Circuit

Frequency Meter

Q Factor

Parallel Resonant Circuit

Summary

11 A.C. Generators and Motors

Alternators

A.C. Motors

Linear Motor

Single-Phase Motors

Summary

12 Other Methods of Generating E.M.F

M.H.D.

Nuclear Battery

Thermoelectric Effect

Photoelectric Effect

Piezoelectric Effect

Electrostatic Generators

What Next?

Table of Natural Trigonometric Functions

Appendix: Glossary of Terms Used in Electricity

Revision Questions

Answers

Index