Which electrical principle describes the relationship between resistance, voltage, and current?

The principle that describes the relationship between resistance, voltage, and current is known as Ohm's Law. This law 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. In formula terms, this is expressed as V = I × R, where V is the voltage, I is the current, and R is the resistance.

Understanding Ohm's Law is fundamental in electronics because it helps predict how electrical currents move through a circuit, informing decisions about circuit design, troubleshooting, and component selection. This relationship is crucial for ensuring that electrical systems operate safely and efficiently.

While Kirchhoff's Law pertains to the conservation of charge and energy in electrical circuits, and Faraday's Law relates to electromagnetic induction, they do not specifically describe the basic relationship among voltage, current, and resistance as Ohm's Law does. Newton's Law, while relevant in physics, addresses motion rather than electrical concepts, making it unrelated to this question.