What instrument is used to measure the amount of current passing through a conductor?

The correct answer is ammeters. Ammeters are specifically designed to measure the current flowing through a conductor in an electrical circuit. They are placed in series with the circuit to obtain an accurate reading of the current in amperes.

When using an ammeter, it allows technicians and engineers to monitor the electrical flow and diagnose issues within the system effectively. This function is crucial in various applications, including troubleshooting gas turbine systems, where understanding current flow is vital for ensuring proper operation and safety.

In contrast, voltmeters measure the voltage across a component, while ohmmeters measure resistance in ohms. An amperage meter, while similar in name to the ammeter, is generally considered less accurate and may not provide the same level of detail or precision as a true ammeter. Thus, ammeters are the most appropriate tool for measuring current in electrical systems.