Elevator Mechanic Practice Exam 2026 - Free Elevator Mechanic Practice Questions and Study Guide

To create a 300 ohm resistor using resistors you already have, connecting two 150 ohm resistors in series is a valid method. When resistors are connected in series, their resistances add together. Therefore, combining two 150 ohm resistors yields:

150 ohms + 150 ohms = 300 ohms.

This approach effectively provides the desired resistance value of 300 ohms by utilizing the series connection property of resistors. In contrast, other options do not achieve the same target resistance. For instance, resistors in parallel reduce the overall resistance, and combinations in those options would not yield a total of 300 ohms.