Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 87
instruments are alsoapplicable to either alternating or continuous currents, and can beused for ammeters or voltmeters. The well-known Cardew volt-meter is illustrated here in Fig. 82. A fine wire is strung up and 71 Hot-Wire Instruments down four times over three pulleys, as shown, making about lo…
Electrical engineering · Electric power
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