Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 141
tends up and over a circularscale. The torsion head also carries anotherpointer. When a current is passed throughthe coils, the movable one tends to move soas to include the greatest number of linesof force and to set itself parallel to the fixedcoil. The torsion of the spring opposes thismovement.… … ELECTRIC PORTABLE HOISTING MACHINE.Yale aii^l Towue Mftr. Co. ELECTKR AL .AIEASUKEMENTS. 21 througli Avliicli the torsion head is turned, as indicated by thepointer, varies directly as the square of the current strenufth. Thescale may l»e graduated to read directly in amperes. This instrument is…
Electrical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
