According to Ohm's Law, voltage and current in an electrical circuit are:

Ohm's Law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in a circuit. According to Ohm's Law, voltage (V) is equal to current (I) multiplied by resistance (R), which can be expressed mathematically as V = I × R. This relationship indicates that for a constant resistance, if the voltage increases, the current will also increase proportionally. Therefore, voltage and current are directly proportional to each other.

This direct proportionality means that if you double the voltage, the current will also double, assuming the resistance remains constant. This principle is crucial for understanding how electrical circuits operate and how to design them effectively for various applications.

Other relationships mentioned, such as inverse proportionality or independence, do not align with the established principles of Ohm's Law. Additionally, while temperature can affect resistance in a circuit, Ohm's Law itself directly addresses the relationship between voltage and current only, holding resistance constant when discussing these two variables.