What is the term used to measure electrical current?

The correct term used to measure electrical current is an ammeter. An ammeter is specifically designed to measure the flow of electric current in a circuit, expressed in amperes. It is essential for technicians to understand current flow, as it helps diagnose issues in electrical systems, ensuring proper function and safety.

In contrast, while a voltmeter measures the electrical potential difference (voltage) between two points in a circuit, and a wattmeter measures the power consumed in an electrical circuit, both devices serve different purposes unrelated to directly quantifying current. An ohmmeter measures resistance within a circuit, another important electrical parameter, but it does not measure current. Understanding the specific roles of these instruments is crucial for effectively troubleshooting and maintaining electrical systems in oil heating applications.