Answer:
An ammeter measures electrical current in a circuit, typically in amperes (amps). It is connected in series to the circuit, allowing the current to pass through it. The ammeter's scale displays the current flow, showing whether the current is increasing, decreasing, or steady. It provides real-time information about how much current is flowing through the circuit at any given moment. Ammeters are essential tools for monitoring and troubleshooting electrical systems, ensuring that circuits operate within safe limits and helping identify issues like overloads or faults.