What is the purpose of using a Multimeter?

The purpose of using a multimeter is to measure voltage, current, and resistance, making it an essential tool in electrical work. It combines multiple measurement functions into a single device, which enhances its versatility and utility for technicians. With a multimeter, professionals can diagnose electrical issues by checking the voltage across components, measuring the current flowing through a circuit, and determining the resistance of different parts, which aids in troubleshooting and maintaining electrical systems.

While amplifying electrical signals and converting electrical energy are tasks that may be performed by other specialized equipment, they do not pertain to what a multimeter does. Additionally, while there are tests for insulation resistance, those would typically require a specific type of multimeter known as an insulation tester rather than the general use of a standard multimeter. Thus, the multimeter's primary functions focus on the core electrical measurements that are vital for assessing and troubleshooting circuits.