Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 127
ts. Comparing Fig. 122 with Fig. 119, it is evident that the same con-ditions exist in both cases; therefore, the proportion that is true in one no ELECTRICAL MACHINERY is also true in the other, which is:90X 10,000 eiRe : ei :: R : Ri, from which Ri = — e 10 = 90,000 ohms. Hence it is evident… … VOLTMETER R-90.000 pMAWAA-*
Electric machinery
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