What is a common application of an ammeter?

• A. Measuring voltage
• B. Measuring capacitance
• C. Measuring current
• D. Measuring temperature

Answer: (C)

An ammeter is specifically designed to measure electric current flowing through a circuit. When connected in series within the circuit, it allows for the flow of current to pass through it, giving a direct reading of the current intensity, typically expressed in amperes (A). This function is critical for diagnosing electric circuits, understanding the performance of electrical devices, and ensuring proper circuit functionality.

The other applications mentioned, such as measuring voltage, capacitance, or temperature, require different instruments. A voltmeter measures voltage, a capacitance meter is used for capacitance, and a thermometer is used for temperature. Each of these functions is distinct and relies on specialized tools tailored for those specific measurements, distinguishing them from the primary role of an ammeter.