Which device is used to measure electrical current?

The device specifically used to measure electrical current is an ammeter. It is designed to measure the flow of electric charge in a circuit, providing readings in amperes (A). When connected in series within a circuit, the ammeter allows for accurate measurement of the current passing through it, making it essential for troubleshooting and ensuring safe and efficient electrical operation.

While other devices have their own unique purposes, they do not measure current directly. A voltmeter measures voltage across a component or circuit, an ohmmeter measures resistance, and a multimeter can measure current, voltage, and resistance but is not solely dedicated to measuring current like an ammeter is.