| ohm | German physicist who formulated Ohm's Law (1787-1854) |
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| ohm | 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 |
| ohm | electric current is directly proportional to voltage and inversely proportional to resistance |
| ohm | the ohmic resistance of a conductor |
| ohm | of or relating to or measured in ohms |
| ohm | a material's opposition to the flow of electric current |
| ohm | a meter for measuring electrical resistance in ohms |