Enter two known values and press "Enter" to find the two remaining values.


Background Information: Ohm's Law

Ohm's Law is the relationship between voltage current and resistance. Resistance is measured in Ohms and the higher the Ohms the higher the resistive value.

Ohm's law equation is defined by: V = I X R.

Whereby; V (Potential Difference in Volts), I (Current in Amps) and R (Resistance in Ohms)

This formula can be mathematically rerranged to calculate the voltage, current or resistance value.

ohs law

Did you know! We also have a Four Band Resistor Code Calculator too!

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