The Counter Electromotive Force in the Electric Arc ...

34 ampere 42 volts Abscissæ are hundredths According adjustment alternating current amperes arrangement assume become brass bridge C. P. lamp Calculating carbon caused closing collar conclusion connected Consequently constant constant quantity constructed Copper counter E. M. F. counter electromotive force course curve decrease definite depending determined developed difference of potential direct current distance drop Edison circuit effect elec Electrical electrodes equation existence explain expressed fact fall finally fixed formula german silver wire give given heat inch increase iron keep lated lead length material mean measure metal method negative electrode Observed ohmic resistance ohms Ordinates are volts positive carbon practically present quantities relation remain constant rent resistance of arc shown in Fig sound Steel surface TABLE Taking telephone temperature temperature of volatilization thread values vapor variations varied voltage voltmeter reading Weston whistling Zinc