What is the relationship between voltage and current in a circuit with constant resistance?

The relationship between voltage and current in a circuit with constant resistance is defined by Ohm's Law, which states that the voltage across a conductor is directly proportional to the current flowing through it, as long as the resistance remains constant. This means that if the resistance does not change, when the current increases, the voltage must also increase. Conversely, if the current decreases, the voltage will also decrease. This direct proportionality can be mathematically expressed as V = IR, where V represents voltage, I represents current, and R represents resistance. Hence, when considering how voltage and current interact under consistent resistance conditions, the correct understanding is that they move in tandem, making them directly proportional to one another.