Electrical instruments and testing; how to use the voltmeter, ohmmeter, ammeter, potentiometer, galvanometer, the Wheatstone bridge, and standard portable testing sets (1907)
Schneider, Norman H. (Norman Hugh), Hargrave, Jesse · New York, Spon & Chamberlain; [etc., etc.] · leaf 173
f the shunt. In this example let the rheostat be 1800, then1800 X 10 X 100 - 1,800,000 ohms. This is the re-sistance through which the galvanometer is de-flected one degree by one cell of battery. The cable is now connected in as in Fig. 87, toZ>, and a ground connection made from G r at… … \\\\\\\\W\\v wwwwwvvA Fig. 86. The battery has been increased to six cells,therefore the constant is to be multiplied by 6and divided by the deflection obtained. CABLE TESTING. 151
Electric testing · Electric apparatus and appliances
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