A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 998
meter is thesame as that of the Kelvin current balance,but the design of the apparatus is different.The couple is here measured by the twistin a spring instead of by means of amovable weight. Two coils ABCD andPQRS (Fig. 911), approximately rect-angular in form, are connected in series.PQRS is… … FIG. 911.—Diagram of Siemenselectrodynamometer. 974 MAGNETISM AND ELECTRICITY CHAP. between the coils cause rotation of the suspended coil in the direc- ,tion of the arrows. It is then brought back to its original positionby rotating the pointer to which the upper end of the spring isattached. The…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
