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- Dictionaryohm/əʊm/
noun
- 1. the SI unit of electrical resistance, transmitting a current of one ampere when subjected to a potential difference of one volt.
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noun
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The ohm is the unit of electrical resistance in the International System of Units. It is named after German physicist Georg Ohm. Various empirically derived standard units for electrical resistance were developed in connection with early telegraphy practice, and the British Association for the Advancement of Science proposed a unit derived from existing units of mass, length and time, and of a con... Wikipedia