Nate Electrical Practice Exam 2026 - Free Electrical Practice Questions and Study Guide

Ohm's law is foundational in understanding electrical circuits and describes the relationship among current (I), voltage (V), and resistance (R) in a straightforward manner. Specifically, it states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. This can be mathematically represented as I = V/R.

This means that if the voltage increases while resistance remains constant, the current will also increase, demonstrating direct proportionality. Conversely, if the resistance increases while voltage stays the same, the current will decrease, which highlights the inverse relationship between current and resistance. The formulation encapsulates these relationships, confirming why the selected answer accurately reflects Ohm's law. Understanding this fundamental principle is crucial for analyzing and designing electrical circuits effectively.