What tool is typically used to measure electrical current?

The tool typically used to measure electrical current is the ammeter. This instrument is specifically designed to measure the flow of electric charge in a circuit, which is quantified in amperes. The ammeter is connected in series with the circuit so that the current flowing through the circuit also flows through the ammeter, allowing it to accurately measure the current.

In contrast, a voltmeter measures voltage, which is the potential difference between two points in an electrical circuit, and is usually connected in parallel with the circuit. An ohmmeter is used to measure resistance in ohms and is typically used to check if a given component is functional by testing for continuity. A wattmeter measures electrical power in watts and provides information about the power consumed or utilized by an electrical device, which combines both voltage and current measurements. Understanding the specific functions of these tools helps in choosing the correct device for electrical measurements.