Ohm's law

Ohm's law
Ohm Ohm ([=o]m), n. [So called from the German electrician, G. S. Ohm.] (Elec.) The standard unit in the measure of electrical resistance, being the resistance of a circuit in which a potential difference of one volt produces a current of one amp['e]re. As defined by the International Electrical Congress in 1893, and by United States Statute, it is a resistance substantially equal to 10^{9} units of resistance of the C. G. S. system of electro-magnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14.4521 grams in mass, of a constant cross-sectional area, and of the length of 106.3 centimeters. As thus defined it is called the {international ohm}. [1913 Webster]

{Ohm's law} (Elec.), the statement of the fact that the strength or intensity of an electrical current is directly proportional to the electro-motive force, and inversely proportional to the resistance of the circuit. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

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  • Ohm's law — /ˈoʊmz lɔ / (say ohmz law) noun the law which states that in any electric resistance the current flowing is proportional to the voltage and inversely proportional to the resistance. {See ohm} …  

  • Ohm's law — n. Electr. a law stating that current is proportional to voltage and inversely proportional to resistance. Etymology: see OHM …   Useful english dictionary

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