An ammeter is used to measure which electrical quantity?

Prepare for the Supply Chain Automation Equipment Maintenance Test. Study with flashcards and multiple-choice questions, detailed explanations, and hints. Boost your readiness for the exam!

Multiple Choice

An ammeter is used to measure which electrical quantity?

Explanation:
An ammeter measures current—the rate at which electric charge flows. To measure it, you place the ammeter in series with the circuit so all the current passes through the meter, and it’s built with very low resistance so it doesn’t significantly alter the circuit. The current is measured in amperes (A). This is different from voltage, measured with a voltmeter (in parallel across a component), and from resistance, measured with an ohmmeter. Power is related to both voltage and current (P = V × I) and is measured with a power meter or calculated from those two quantities.

An ammeter measures current—the rate at which electric charge flows. To measure it, you place the ammeter in series with the circuit so all the current passes through the meter, and it’s built with very low resistance so it doesn’t significantly alter the circuit. The current is measured in amperes (A). This is different from voltage, measured with a voltmeter (in parallel across a component), and from resistance, measured with an ohmmeter. Power is related to both voltage and current (P = V × I) and is measured with a power meter or calculated from those two quantities.

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