Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 194
Fig. 76. being divided into 4 quarters. Each interval between twoadjacent concentric circles signifies one ampere. A voltmeterrecord is arranged in the same way, except that the distancebetween two circles represents two volts. Exact voltmeterrecords are of the greatest importance. o 3 < o3 if @… … xujo z ?o 3 £™o am iw H>m i a rn r* era r-<o m>»l3 £3 a? 1 o a r H H n
Electrical engineering
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