In a three-variable equation, when two (2) values are known, it is possible to calculate the third one. To this end, one needs to understand Ohm's law and know how to use it.
Ohm's law explains the relationship between voltage, intensity, and resistance in an electrical circuit.
- The intensity is directly proportional to the voltage.
- The intensity is inversely proportional to the resistance.
- The voltage is directly proportional to the resistance.