What is Ohm’s Law? Ohm’s Law is a fundamental principle in electrical engineering that relates three key variables: voltage (V), current (I), and resistance (R). It is expressed as : V=I×RV Where: Ohm’s Law helps calculate any of these variables if the other two are known. The Calculator The Ohm’s Law Calculator provided here simplifies […] The post Online Ohm’s Law Calculator first appeared on Electronics - Microcontrollers.