who discovered ohm's law

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Nature

Georg Simon Ohm discovered Ohm's Law. Key points:

  • Ohm was a German physicist and mathematician who conducted experimental work in the early 1820s.
  • He published the complete theory of electricity and formally stated the law in his 1827 treatise Die galvanische Kette, mathematisch bearbeitet, establishing that the current through a conductor is directly proportional to the voltage and inversely proportional to the conductor's resistance. This is the essence of Ohm's Law: V = I R.
  • The law has since become a fundamental relation in electronics and circuits, and the unit of electrical resistance—the ohm—is named after Ohm in recognition of his contribution.