SI derived quantity: electric resistance

This category of measurement units is defined by the "electric resistance" type, which is an SI derived quantity.

SI unit: ohm

The SI derived unit for electric resistance is the ohm.

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Definition: Ohm

The ohm (symbol: Ω) is the SI unit of electrical impedance or, in the direct current case, electrical resistance, named after Georg Ohm. It is defined as the resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere, the conductor not being the seat of any electromotive force.

Electric resistance units