International Library of Technology · Scranton, International Textbook Co. · leaf 164
d with a coil of 8 in.diameter with accurate results. The deflections of a magnet as short as this could scarcely 1598 ELECTRICAL MEASUREMENTS. be read directly. A very thin light pointer is, therefore, at-tached to the magnet, usually at right angles to it, whichextends out over a scale upon which… … one on each side of the coil. One is divided into degrees,and the divisions on the other are proportional to the tan-gents of the angles represented by the divisions on the degreescale. 2466. In order that a variety of current strengths maybe measured with the same instrument, it is customary…
Electrical engineering
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