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 219
rrent is now passedthrough the bobbin by way of the springs, the current will 208 flow downwards on one side of the bobbin and upward onthe other side. Thus the current in both sides of the bobbtnproduces a torque which moves the bobbin against the forceof the two hair springs S. The bobbin will… … Figure 71Diagram of connections and moving parts of Weston voltmeter A little examination will show that the torque exertedby the wires carrying the current on bobbin B is propor-tional to the current, for the flux is constant throughoutthe whole air gap. It is also true that the…
Electricity
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