Resistance Calculator — Formule
## Resistance
Resistance measures how strongly a component opposes the flow of electric current.
### Formula
**R = V / I**
Derived from Ohm's law. The unit is the ohm (Ω), named after Georg Ohm.
Resistance measures how strongly a component opposes the flow of electric current.
### Formula
**R = V / I**
Derived from Ohm's law. The unit is the ohm (Ω), named after Georg Ohm.
Exemple Résolu
A 12 V battery drives 0.5 A through a resistor.
- R = V / I
- R = 12 / 0.5
- R = 24 Ω