Leeds & Northrup apparatus at the Louisiana Purchase Exposition 1904 (1904)
Leeds and Northrup Company · Leeds and Northrup Company · leaf 34
lated curves have been drawn to scale on a single sheet, showingthe forms, phases and relative amplitudes of the current and electromo- M -o @ /v 3> tive forces (and also perhaps the magnetizations and power waves) whichare concerned in the operation of a given machine or system, we have… … Pig. i )> frequently employed (Fig. 2). The value of the current, at the instantthe circuit is closed at M by the contact-maker, may be determined bymeasuring the difference of potential of the terminals All of a knownresistance, through which the current flows. The potential difference…
Electricity · Electrical Equipment · Electric Circuits · Electronics
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