Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 220
on as to accommodate through itselfthe greatest number of the magnetic linesof the helix, then the limit of the scalew^as attained and the capacity of the instrument was 0 to 10amperes. By attaching a small weight to the core, if theAvire were of sufficient size to carry the current, the… … Fig. 188.—SolenoidGravity Ammeter. ^ E Z>YJ\lAA/iO ss LA7VIPS Fig. 189.—Ammeter Correctly Couuected in Serieswith the Circuit. positions than atothers for thesame increment of current, giving a scale of unequal divisions,and generally cramped at each end. The instrument is notdead beat, is…
Electricity · Magnetism
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