ELECTRICAL INSTRUMENTS and TESTING.
How to Use the Voltmeter, Ammeter, Galvanometer, Potentiometer, Ohmmeter, the Wheatstone Bridge, and the Standard Portable Testing Sets.
BY
NORMAN H. SCHNEIDER.
Author of “Care and Handling of Electric Plants,” “Induction Coils and Coil Making,” “Circuits and Diagrams,” etc., etc.
The aim of the author has been to produce a complete and practical work on this important subject.
First describing the various forms of Electrical Testing and Measuring Instruments and their construction.
Secondly, their practical application to everyday work with numerous examples worked out.
Thirdly, detailing the many tests of insulation resistance, current and e.m.f. that can be made with a voltmeter.
Using only formulas in simple algebra and then explaining them in plain language for the benefit of practical men lacking a knowledge of mathematics.
During the past ten years the author has made hundreds of tests, which has made him familiar with the subject from the practical standpoint. He has also obtained valuable information and diagrams from the principal manufacturers of Testing Instruments. The apparatus described is modern and in universal use.