Practical electricity .. with questions and answers (1911)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 221
traverse the very high re-sistance R; this resistance is from 65,000 to 75,000 ohms fora volt meter intended for a 600-volt circuit. Therefore the 210 current whicl] passes through the wires on the bobbin, evenwith full voltage, is very small, and with 100 volts will benot much over 1-700 of an… … Figure 73 Magnetic vane voltmeter depending on repulsion of twosimilarly magnetized iron strips. Tvay in which it is made deadbeat, or the way in which theneedle is prevented from vibrating back and forth on eachside of the point at which it will finailly come to rest. Thebobbin B is made of…
Electricity
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