What is the primary function of an ammeter?

The primary function of an ammeter is to measure current. An ammeter is specifically designed to measure the flow of electric charge in a circuit, and it is connected in series with the circuit component whose current is being measured. When the ammeter is placed in line with the circuit, it can accurately indicate the amount of current (measured in amperes) flowing through that part of the system.

This is crucial for understanding the performance and safety of electrical systems, as current levels affect the operation of devices and components. Managing and monitoring current is vital for preventing overloads and ensuring that a circuit operates within its designed parameters.