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There is no right or wrong in this world..
 It depends on which perspective you see


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OHMS LAW

V, I, and R, the parameters of Ohm's law.              Ohm's law states that at constant temperature ,the current through a conductor between two points isdirectly proportional to the potential difference across the two points.    

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Thomas Edison, American inventor and businessman, known as "The Wizard of Menlo Park", pushed for the development of a DC power network. In the "War of Currents" era (sometimes, "War of the Currents" or "Battle of Currents" ) in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current (DC) for electric power distribution over alternating current (AC) advocated by several European companies [1] and Westinghouse Electric based in Pittsburgh, Pennsylvania, which had acquired many of the patents by Nikola Tesla . The direct-current system generated and distributed electric power at the same voltage as used by the customer's lamps and motors. This had the effect of large, costly, distribution wires and forced generating plants to be near the loads. With the development of a practical transformer, power could be sent long distances over relatively small wires at...