Which law describes the relationship between current (I), voltage (V), and resistance (R)?

The relationship between current (I), voltage (V), and resistance (R) is articulated by Ohm's Law. This fundamental principle states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. Mathematically, it can be expressed as V = I * R, where V is voltage in volts, I is current in amperes, and R is resistance in ohms.

Ohm's Law is essential in electrical engineering and physics because it provides critical insights into how circuits operate both in a theoretical and practical sense. Understanding this relationship is crucial for analyzing electric circuits, troubleshooting, and designing various electrical components. The other laws mentioned, while significant in their own contexts—such as Faraday's Law regarding electromagnetic induction, Kirchhoff's Laws concerning current and voltage in circuits, and Newton's Laws governing motion—do not specifically describe the direct relationship between current, voltage, and resistance as Ohm's Law does.