Zano raani, pakati paTesla naAdams, rakanga risiri iro rakavakirwa hurongwa hwose hweAC? Tichifunga nezvemubvunzo wapfuura, nyora mashoko akapoteredza mhinduro yacho. Inogona kuva mitsara 1 - 20. Mashoko akapoteredza:
Muna 1893 Richard Dean Adams, aitungamirira Niagara Falls Cataract Construction Company, akakumbira maonero aTesla pamusoro penzira yaizova yakanakisisa yokutumira simba rinogadzirwa pamapopoma. Kwemakore anoverengeka kwave kune nhevedzano yezvikumbiro uye makwikwi akavhurika pamusoro pekuti ungashandisa sei zvakanakisisa simba rinogadzirwa nemapopoma nemasisitimu akawanda ari kupiwa nemakambani akawanda eU.S. neEurope kusanganisira maviri-chikamu uye matatu-chikamu AC, yakakwirira-voltage DC, uye kunyange mhepo yakamanikidzwa. Adams akafuridzira Tesla nokuda kwemashoko pamusoro pemamiriro ezvinhu azvino uno emarongedzero ose anokwikwidza. Tesla akarayira Adams kuti gadziriro ine zvikamu zviviri yaizova yakavimbika zvikurusa uye kuti kwakanga kune gadziriro yeWestinghouse yokuvhenekera mababu ane incandescent achishandisa magetsi anotsiva ane zvikamu zviviri. Zvichienderana nezano raTesla uye kuratidzwa kwaWestinghouse kwekuti vaigona kuvaka hurongwa hwakazara hweAC kuColumbian Exposition, chibvumirano chekuvaka maviri-chikamu AC inogadzira system kuNiagara Falls chakapihwa Westinghouse Electric. Chimwe chibvumirano chokuvaka gadziriro yokuparadzira AC chakapiwa kuGeneral Electric.