Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 56
esistance has dropped. The lamp has only half the resistancewhen hot that it has when cold, a fact well known. In fact, heat increases the resistance of metals and decreases theresistance of the carbon, of which the filament of the lamp is made. If the current in the circuit is not i ampere, make… … Fig. 46.—Experimental Series Circuit voltmeter V across the battery terminals ; next the ammeter showingthe current flowing ; next the resistances, regulating the current byadjusting the resistance of the whole circuit; next the lamp, whereelectrical energy is being converted into light and heat;…
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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