What is the primary function of an ammeter?

The primary function of an ammeter is to measure electric current in a circuit. An ammeter is specifically designed to give readings in amperes (A), which assess the flow of electric charge. This instrument is typically connected in series with the circuit, allowing the entire current flowing through the circuit to pass through the ammeter.

Understanding the role of an ammeter is crucial in various electrical applications, such as in troubleshooting circuits, monitoring current consumption, and ensuring that electrical systems operate within safe limits. This measurement provides vital information for maintaining electrical systems and helps prevent overload conditions that could lead to failures or hazards.

In contrast, voltage measurement is performed by a voltmeter, resistance is measured with an ohmmeter, and power is calculated using both current and voltage measurements. Each of these devices serves a distinct function, highlighting the importance of precise tools in the field of electrical maintenance and troubleshooting.