Electrical IBEW Practice Test 2026 - Free IBEW Practice Questions and Study Guide

Ohm's Law defines the fundamental relationship between voltage, current, and resistance in an electrical circuit. 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. Mathematically, this is represented as \( V = I \times R \), where \( V \) is the voltage (volts), \( I \) is the current (amperes), and \( R \) is the resistance (ohms). This relationship is crucial for understanding and analyzing electrical circuits, allowing electricians and engineers to calculate how much current will flow for a given voltage and resistance, which is essential for designing circuits safely and effectively.

The other options describe different principles in electricity: magnetic induction pertains to how magnetic fields can generate electric currents, electrical power refers to the rate at which electrical energy is transferred or converted, and alternating current involves the type of current that periodically reverses direction. While all these concepts are important in the field of electrical engineering, they do not describe the relationship characterized by Ohm's Law.