What is the correct term for the relationship between voltage and current in a resistive circuit?

In a resistive circuit, the relationship between voltage and current is described by Ohm's Law, which states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature remains constant. This relationship can be expressed with the formula V = I × R, where R represents resistance.

When we say that voltage and current are directly proportional, it means that if the voltage increases, the current also increases, assuming the resistance remains constant. This principle is fundamental in electrical engineering and indicates that circuits behave predictably under resistive loads. In practical terms, if you double the voltage applied to a resistor, the current flowing through that resistor will also double, demonstrating direct proportionality.

This clarifies why the others do not accurately describe the relationship: being indirectly proportional or inversely proportional would imply that an increase in one would lead to a decrease in the other, which contradicts the fundamental behaviors outlined by Ohm's Law. The term exponential would suggest a much different mathematical relationship where current increases at an increasing rate with voltage, which is not the case in a resistive circuit. Thus, the direct proportional relationship is the correct and scientifically recognized term for voltage and current in