Kutia

The ohm (symbol Ω ) is the unit derived from Electrical resistance of the international Système (IF). It was named in honor of Georg Ohm.

Definition: Electrical resistance between two points of a driver when a constant potential difference of 1 Volt, applied between these two points, produced in this driver a current of 1 amp the known as driver being the seat of no electromotive Force.

The ohm thus corresponds to V.A^-1 or in basic units: m.kg.s^-3.A^-2 .

One calls also Loi of Ohm the relation:

U = R.I \,

R = U/I \,

and

I = U/R \,

With $U \,$ in Volt, $I \,$ in Amp (unit) and $R \,$ in ohm.