What does Ohm's Law describe the relationship between?

Ohm's Law specifically describes the relationship between voltage, current, and resistance in an electrical circuit. According to Ohm's Law, the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. This relationship is mathematically expressed with the formula V = I × R.

This principle is foundational in electrical engineering as it allows for the calculation of one element (voltage, current, or resistance) when the other two are known. Understanding this relationship is crucial for designing and analyzing electrical circuits, as it helps in predicting how changes in voltage or resistance will affect the current flow.

In contrast, other choices that mention power or frequency do not accurately represent Ohm's Law. While power is related (through the equations P = V × I and P = I²R), it is not part of the fundamental relationship described by Ohm's Law itself. Similarly, the inclusion of frequency does not pertain to Ohm's Law, which operates in a direct current (DC) context; frequency relates more to alternating current (AC) systems and the behavior of inductive and capacitive elements.