Physics Edupedia: Learn with fun

  In the late 1880s, Edison and Tesla both involved in the "War of the Currents," with Edison advocating the use of direct current (DC) for power distribution (for which he held the patents) and Tesla supporting alternating current (AC), which allowed for the transmission of significant amounts of energy to power large cities. Edison invented direct current, which flows continuously in a single direction in devices like batteries and fuel cells. Direct current, also known as DC, was the norm in the United States during the early years of electricity. However, there was one issue. It is difficult to convert direct current to higher or lower voltages. Alternating current was, in Tesla's opinion, the solution to this issue. A transformer can easily change the voltage of alternating current, which reverses direction a specific number of times per second. Edison started a campaign to demonize alternating current because he did not want to lose the royalties, he was receiving f...