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Table of Contents -- ohm POS
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY

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ohm

POS

Noun

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WORDNET DICTIONARY

Noun ohm has 2 senses

ohm(n = noun.quantity) - 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;

is a kind of

resistance unit

has parts: abohm

is a part of megohm

Derived form adjective ohmic₁

ohm(n = noun.person) georg simon ohm - German physicist who formulated Ohm's law (1787-1854);

is a kind of physicist

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CIDE DICTIONARY

ohm, n. [So called from the German electrician, G. S. Ohm.].

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. [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.

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OXFORD DICTIONARY

ohm, n. Electr. the SI unit of resistance, transmitting a current of one ampere when subjected to a potential difference of one volt.

Derivative

ohmage n.

Etymology

G. S. Ohm, Ger. physicist d. 1854