What does Ohm’s Law express the relationship between?

Ohm’s Law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in an electrical circuit. The law can be mathematically expressed with the formula V = I × R, where V represents voltage (in volts), I represents current (in amperes), and R represents resistance (in ohms).

This relationship indicates that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature remains constant. When the resistance increases, the current decreases for a given voltage, and vice versa. This is foundational knowledge for anyone studying electrical systems, as it helps in understanding how circuits behave under various conditions.

The other options introduce various electrical concepts, but they do not accurately represent the specific relationships defined by Ohm’s Law. Power and frequency are different electrical parameters not directly linked in the context of Ohm's Law, making them irrelevant to this fundamental relationship.