Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 225
ethe coil is moving, which causes eddy currents, • 292, toflow around the bobbin in the opposite direction to the cur-rent in the coil. These momentary currents tend to stop themotion of the coil, and have the effect of preventing theneedle from oscillating, thus bringing it to rest quickly at… … of current. A current of about .015 ampere will give a fullscale deflection of the pointer. The instrument is carefullybalanced, so that it may be used in a horizontal or vertical position. An ammeter, however,should always be calibrated in theposition in which it is to be used. Amirror is located…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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