FAA A&P Mechanics Practice Test 2026 - Free A&P Mechanics Practice Questions and Study Guide

The relationship defined by Ohm's Law describes how voltage, current, and resistance interact in an electrical circuit. According to Ohm's Law, 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 relationship is mathematically expressed as:

Current (I) = Voltage (V) / Resistance (R)

By emphasizing the correct answer, this formula clearly indicates that, for a constant resistance, increasing the voltage results in an increase in current, while increasing the resistance leads to a decrease in current for a given voltage. Understanding this relationship is fundamental in electrical theory and helps in various applications, such as troubleshooting and designing electrical circuits, ensuring that a mechanic can effectively analyze and manage electrical systems in aviation.