[ˈəʊ_ə_m], [ˈə͡ʊəm], [ˈəʊəm]
Definitions of ohm

German physicist who formulated Ohm's Law ( 1787 1854)

a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

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 ampere. As defined by the International Electrical Congress in 1893, and by United States Statute, it is a resistance substantially equal to 109 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.

The unit of electrical resistance, equivalent ot the resistance of 400 feet of common iron telegraph wire; from Georg Simon Ohm ( 1787 1854), German physicist.

The unit of resistance in galvanic electricity.
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