Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 91
ssion:A given deflection of the movable plate depends upon a definiteaverage or constant force acting between the two plates. The forcedue to a constant electromotive force E is kE^, that is, the force isproportional to E^; and the average force due to an alternatingelectromotive force e, is A:X… … wo h s » JO ° W<! 5 WW ^ So - .M ALTERNATING-CURRENT MACHINERY 65 The great advantage of this type of voltmeter is that it takesno current when used on direct-current circuits, and an extremelysmall current when used on alternating-current circuits. Its otheradvantages, like those of the…
Electrical engineering
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