Ohm's Law is a statement of the relationship between Voltage, Current, and Resistance in an electrical circuit. It can be represented by the above diagram. Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance, which finishes the usual mathematical equation that describes this relationship, which is I=V/R. I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.
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