Answer:
Nikola Tesla
Step-by-step explanation:
From a work with rotational magnetic fields, Tesla developed a system of generation, transmission and use of the electric energy coming from alternating current. Tesla partnered with George Westinghouse to market this system. Westinghouse bought in advance the patent rights to the Tesla polyphase system as well as other patents of AC converters from Lucien Gaulard and John Dixon Gibbs, thereby circumventing the patent monopoly claimed by Thomas Edison.