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.

Contenu

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