IBEW Electrical Practice Test 2025 – Complete Exam Preparation

Question: 1 / 400

Which tool is used to measure electrical current?

Voltmeter

Ammeter

The tool specifically designed to measure electrical current is the ammeter. An ammeter effectively measures the flow of electric current in a circuit, providing a reading in amperes (A). It accomplishes this by being connected in series with the circuit whose current you wish to measure, allowing it to capture the total current flowing through that part of the circuit.

While a voltmeter measures the voltage (electrical potential difference) across components and an ohmmeter measures resistance, neither serves the specific function of measuring current. A multimeter, although versatile and capable of measuring current, voltage, and resistance, typically requires the user to set it to the appropriate mode to measure current. Therefore, the ammeter is the dedicated tool for measuring current directly and accurately.

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Ohmmeter

Multimeter

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