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 203
Fig. 99. the bell. A lead may be taken from an electriclight circuit to replace the battery. And if nodefinite readings are desired an incandescent lampmay replace the voltmeter. … Fig 100. But the voltmeter method will show the extentof any fault in the circuit or the resistance of thelatter. The resistance is calculated from the de-flections by the method given elsewhere, TESTING WITH VOLTMETER. 181 Testing the Resistance of Coils. If a number ofcoils are to be compared, as…
Electric testing · Electric apparatus and appliances
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