Georg Ohm

225px-Georg_Simon_Ohm3Georg Simon Ohm (German; 16 March 1789 – 6 July 1854) Physicist and mathematician. He is best known for using Volta’s invention of the early battery, or electrochemical cell as it was known then, to determine the relationship between electrical current, voltage, and resistance of the conductor in the circuit. This is known today as Ohm’s Law (I=V/R), where I represents the current flow, V represents voltage, and R represents the resistance of the conductor making up the circuit. He also discovered, because of his precise measurement style, that the current flow through a wire is directly proportional to its cross sectional area and inversely proportional to its length. This is the basis for determining the resistance of electrical conductors. Read more…

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