In Ohm's Law, what mathematical relationship expresses the connection between voltage (V), current (I), and resistance (R)?

Ohm's Law is a fundamental principle in electronics that describes the relationship between voltage, current, and resistance in an electrical circuit. The correct mathematical expression is V = IR, which means that voltage (V) is equal to the product of current (I) and resistance (R).

This relationship highlights that if either the current or the resistance changes while the other remains constant, the voltage will also change proportionally. For instance, if you increase the resistance in a circuit while keeping the current steady, the voltage across the two points in the circuit will increase. This formula is essential when designing and analyzing electrical circuits, allowing you to calculate any one of these three parameters if you know the other two.

Understanding this relationship is crucial for solving problems involving electric circuits, as it provides insight into how changes in one variable affect the others. In practical scenarios, this can help engineers and technicians diagnose issues, optimize performance, and ensure safety in electrical systems.