What is Ohm's Law?

Ohm's Law is a fundamental principle used in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit. The law states that voltage (V) across a conductor is directly proportional to the current (I) flowing through it, provided the temperature and material of the conductor remain constant. This relationship can be mathematically expressed as V = I × R, where R represents the resistance of the conductor.

In this formula, if the voltage is increased while keeping the resistance constant, the current will also increase. Similarly, if the resistance is increased while maintaining the same voltage, the current will decrease. This illustrates the core of Ohm's Law, helping engineers and electricians design and troubleshoot electrical circuits efficiently. Understanding this relationship is crucial for ensuring systems function safely and within their specified parameters.