RV Technician Practice Exam Prep: Questions and Study Guide

Wattage, which refers to the power consumed or produced in an electrical system, is calculated using the formula that relates voltage, current, and power. The correct approach is to multiply voltage (measured in volts) by current (measured in amperes). This relationship is rooted in Ohm's Law, which states that power in an electrical circuit is the product of voltage and current.

When you multiply voltage by current, you get the power in watts. This formula is fundamental in electrical engineering and is essential for determining how much energy is being used by electrical appliances, including those in recreational vehicles. Understanding this calculation helps technicians assess equipment requirements, troubleshoot issues, and ensure safe electrical operation in RVs.

The other options relate to different aspects of electrical principles but do not correctly represent the relationship for calculating wattage.