What is Ohm's Law expressed in formula form?

Ohm's Law states the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. The correct formula, V = IR, indicates that the voltage across a conductor is equal to the current flowing through it multiplied by the resistance of that conductor. This fundamental principle is crucial for understanding how electrical circuits operate, especially in refrigeration systems where electrical components are used.

In practical terms, if you know the current flowing through a circuit and the resistance of that circuit, you can easily calculate the voltage required to maintain that current. Conversely, if you measure the voltage and know the current, you can derive the resistance. This relationship is foundational for troubleshooting and applying electrical concepts in refrigeration and HVAC systems, where components like compressors, motors, and sensors heavily rely on these principles for effective operation.