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 34
ELECTRICAL ENGINEERING 33 … Fig. 7. The uppermost copper piate is called the positive pole,because the current flows from it through the connectingwire to the lowest zinc plate. The electrical pressure, or electro-motive force (E. M. F.), developed by oneVoltaic cell has been chosen for the unitof measure of electrical…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
