What does Ohm's Law represent?

Ohm's Law is a fundamental principle in electronics and electrical engineering that describes the relationship between voltage, current, and resistance in an electrical circuit. The statement that "Voltage equals current times resistance" accurately summarizes this relationship mathematically, represented as V = I × R, where V is voltage, I is current, and R is resistance.

This law indicates that the amount of 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. Therefore, when voltage increases, current increases as long as resistance remains constant. Similarly, for a given voltage, increasing resistance will result in a decrease in current. This direct and inverse relationship is foundational in circuit analysis and design.

Understanding Ohm's Law is crucial for professionals in the field, as it aids in calculating the necessary values when designing circuits, troubleshooting issues, and ensuring safe operational conditions. Recognizing this relationship helps engineers predict how changes in voltage or resistance will affect current flow, allowing for informed decisions in electrical system design and maintenance.