Electrician's Licensing Practice Exam

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Prepare for the Electrician's Licensing Test with comprehensive multiple choice questions and hints. Improve your knowledge, skills, and confidence to excel in your exam!

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What device is used to measure electric current in a circuit?

Voltmeter
Ammeter
Ohmmeter
Wattmeter

The correct answer is: Ammeter

The device specifically designed to measure electric current in a circuit is known as an ammeter. This instrument is connected in series with the circuit so that the current flowing through the circuit passes through the ammeter. The value displayed on the ammeter indicates the amount of current flowing, typically measured in amperes (A). In contrast, a voltmeter measures the voltage across two points in a circuit, an ohmmeter measures the resistance in ohms, and a wattmeter measures the power consumption in watts. Each of these devices serves distinct functions and measurements, which is why the ammeter is the correct choice for measuring electric current.