In this guide, we will explore how to use a multimeter to perform various measurements and tests. Multimeters are versatile tools used by electricians and hobbyists alike to diagnose electrical problems and ensure the proper function of electrical devices. We'll explain how to measure AC and DC voltage, test for continuity, measure capacitance, measure frequency, and test diodes. Though the exact procedures may vary slightly depending on the specific multimeter model, the fundamental principles...

Resistance is measured using analog or digital multimeters. These tools also measure current, voltage, and more for various applications. Why measure resistance? To determine the condition of a circuit or component. The higher the resistance, the lower the current flow, and vice versa.In general, the resistance of components used to control circuits (such as switches and relay contacts) starts out very low and increases over time due to factors such as wear and dirt. Loads such as motors and solenoids...