Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 244
not require currents in absolute measure it is sufficient to use the tangent of the angle as the measure of the current. A table of tangents for this purpose is given in Appendix II. It is an improvement in con-struction to have two parallel coils(Fig. 141), with the current traversing them in the… … Fig. 141. 150. Sine Galvanometer.—In this galvanometer thereading is taken with the magnet poles always in the sameposition relatively to the coils, and the strength of the fieldtherefore is strictly proportional to the current strength. The tangent galvanometer can be used as a sine galvano-meter…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
