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Electricity for Boys By: James Slough Zerbe (1850-) |
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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... Continue reading book >>
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