The Project Gutenberg EBook of 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: ASCII

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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