Electricity for Boys

Electricity for Boys, by J. S. Zerbe

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Title: Electricity for Boys
Author: J. S. Zerbe
Release Date: September 25, 2007 [EBook #22766]
Language: English
Character set encoding: ISO-8859-1
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THE "HOW-TO-DO-IT" BOOKS
ELECTRICITY FOR BOYS
[Illustration: Fig. 1. WORK BENCH]

THE "HOW-TO-DO-IT" BOOKS
ELECTRICITY FOR BOYS
A working guide, in the successive steps of electricity, described in simple terms
WITH MANY ORIGINAL ILLUSTRATIONS
By J. S. ZERBE, M.E.
AUTHOR OF CARPENTRY FOR BOYS PRACTICAL MECHANICS FOR BOYS
[Illustration: Printer's Mark]
THE NEW YORK BOOK COMPANY NEW YORK

COPYRIGHT, 1914, BY THE NEW YORK BOOK COMPANY

CONTENTS
INTRODUCTORY Page 1
I. ELECTRICITY CONSIDERED. BRIEF HISTORICAL EVENTS Page 5
The Study of Electricity. First Historical Accounts. Bottling Electricity. Discovery of Galvanic Electricity. Electro-motive Force. Measuring Instruments. Rapidity of Modern Progress. How to Acquire the Vast Knowledge. The Means Employed.
II. WHAT TOOLS AND APPARATUS ARE NEEDED Page 11
Preparing the Workshop. Uses of Our Workshop. What to Build. What to Learn. Uses of the Electrical Devices. Tools. Magnet-winding Reel.
III. MAGNETS, COILS, ARMATURES, ETC. Page 18
The Two Kinds of Magnets. Permanent Magnets. Electro-Magnets. Magnetism. Materials for Magnets. Non-magnetic Material. Action of a Second Magnet. What North and South Pole Mean. Repulsion and Attraction. Positives and Negatives. Magnetic Lines of Force. The Earth as a Magnet. Why the Compass Points North and South. Peculiarity of a Magnet. Action of the Electro-Magnet. Exterior Magnetic Influence Around a Wires Carrying a Current. Parallel Wires.
IV. FRICTIONAL, VOLTAIC OR GALVANIC AND ELECTRO-MAGNETIC ELECTRICITY Page 29
Three Electrical Sources. Frictional Electricity. Leyden Jar. Voltaic or Galvanic Electricity. Voltaic Pile; How Made. Plus and Minus Signs. The Common Primary Cell. Battery Resistance. Electrolyte and Current. Electro-magnetic Electricity. Magnetic Radiation. Different Kinds of Dynamos. Direct Current Dynamos. Simple Magnet Construction. How to Wind. The Dynamo Fields. The Armature. Armature Windings. Mounting the Armature. The Commutator. Commutator Brushes. Dynamo Windings. The Field. Series-wound Field. Shunt-wound. Compound-wound.
V. HOW TO DETECT AND MEASURE ELECTRICITY Page 49
Measuring Instruments. The Detector. Direction of Current. Simple Current Detector. How to Place the Detector. Different Ways to Measure a Current. The Sulphuric Acid Voltameter. The Copper Voltameter. The Galvanoscope Electro-magnetic Method. The Calorimeter. The Light Method. The Preferred Method. How to Make a Sulphuric Acid Voltameter. How to Make a Copper Voltameter. Objections to the Calorimeter.
VI. VOLTS, AMPERES, OHMS AND WATTS Page 60
Understanding Terms. Intensity and Quantity. Voltage. Amperage Meaning of Watts and Kilowatt. A Standard of Measurement. The Ampere Standard. The Voltage Standard. The Ohm. Calculating the Voltage.
VII. PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS Page 65
Simple Switches. A Two-Pole Switch. Double-Pole Switch. Sliding Switch. Reversing Switch. Push Buttons. Electric Bells. How Made. How Operated. Annunciators. Burglar Alarm. Wire Circuiting. Circuiting System with Two Bells and Push Buttons. The Push Buttons, Annunciators and Bells. Wiring Up a House.
VIII. ACCUMULATORS, STORAGE OR SECONDARY BATTERIES Page 82
Storing Up Electricity. The Accumulator. Accumulator Plates. The Grid. The Negative Pole. Connecting Up the Plates. Charging the Cells. The Initial Charge. The Charging Current.
IX. THE TELEGRAPH Page 90
Mechanism in Telegraph Circuit. The Sending Key. The Sounder. Connecting Up the Key and Sounder. Two Stations in Circuit. The Double Click. Illustrating the Dot and the Dash. The Morse Telegraph Code. Example in Use.
X. HIGH-TENSION APPARATUS, CONDENSERS, ETC. Page 98
Induction. Low and High Tension. Elastic Property of Electricity. The Condenser. Connecting up a Condenser. The Interrupter. Uses of High-tension Coils.
XI. WIRELESS TELEGRAPHY Page 104
Telegraphing Without Wires. Surging Character of High-tension Currents. The Coherer. How Made. The Decoherer. The Sending Apparatus. The Receiving Apparatus. How the Circuits are Formed.
XII. THE TELEPHONE Page 110
Vibrations. The Acoustic Telephone. Sound Waves. Hearing Electricity. The Diaphragm in a Magnetic Field. A Simple Telephone Circuit. How to Make a Telephone. Telephone Connections. Complete Installation. The Microphone. Light Contact Points. How to Make a Microphone. Microphone, the Father of the Transmitter. Automatic Cut-outs for Telephones. Complete Circuiting with Transmitters.
XIII. ELECTROLYSIS, WATER PURIFICATION, ELECTROPLATING Page 123
Decomposing Liquids. Making Hydrogen and Oxygen. Purifying Water. Rust. Oxygen as a Purifier. Composition of Water. Common Air Not a Good Purifier. Pure Oxygen a Water Purifier. The Use of Hydrogen in Purification. Aluminum Electrodes. Electric Hand Purifier. Purification and Separation of Metals. Electroplating. Plating Iron with Copper. Direction of Current.
XIV. ELECTRIC HEATING. THERMO-ELECTRICITY Page 135
Generating Heat in a Wire. Resistance of Substances. Signs of Connectors. Comparison of Metals. A Simple Electric Heater. How to Arrange for Quantity of Current Used. An Electric Iron. Thermo-Electricity Converting Heat Directly into Electricity Metals. Electric, Positive, Negative. Thermo-electric Coupler.
XV. ALTERNATING CURRENTS, CHOKING COIL, TRANSFORMER Page 145
Direct Current. Alternating