International Library of Technology · Scranton, International Textbook Co. · leaf 173
dthe coil C\ M, the mirror,and /, the iron core, whichis supported from the backin the center of the coil C.Connection from the binding-posts B, B to the coil C ismade through the platinumsuspension wires 5, S. Oneof the chief advantages ofthis instrument is the factthat external fields, such asthe… … 1608 ELECTRICAL MEASUREMENTS. Many of the commercial forms of portable instrumentsare built on the principle of this galvanometer, as will bedescribed. REFLECTING GALVANOMETER. 2477. It is often desirable to use an instrument forindicating the presence of very small currents withoutnecessarily…
Electrical engineering
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