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ohm /ˈom/

歐姆

ohm /ˈom/ 名詞

歐姆(電阻單位)

Ohm

歐姆

ohm

歐姆

From: Network Terminology

ohm

*歐姆

Ohm n. 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 ampére. 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.

**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.

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From: WordNet (r) 2.0

ohm

n 1: 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

2: German physicist who formulated Ohm's Law (1787-1854) [syn:

Georg Simon Ohm]