« Back to Vapetrotter WikiPronunciation: UK: /əʊm/ US: /oʊm/     Symbol: Ω Short Definition: The ohm is a unit of electrical resistance; the electrical resistance of a device across which a potential difference of one volt causes a current of one ampere. The ohm (symbol: Ω) is the International System of Units (SI) derived unit of electrical resistance, named after German physicist Georg Simon Ohm. Although several empirically … Continue reading Ohm