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ASVAB · General

What does an ammeter measure?

Correct answer

Electric current (in amperes)

  1. A Voltage
  2. B Electric current (in amperes)
  3. C Resistance
  4. D Power

Why this is the answer

An AMMETER measures electric CURRENT (in AMPERES/amps). ASVAB Electronics Information tests measuring instruments and units. Key meters: AMMETER → current (amps); VOLTMETER → voltage (volts); OHMMETER → resistance (ohms); a MULTIMETER measures all three. An ammeter is connected in SERIES with the circuit (current flows through it); a voltmeter is connected in PARALLEL (across the component). Knowing that an ammeter measures current (and how it differs from a voltmeter and ohmmeter) is commonly tested.
Source: ASVAB Electronics Information — Measuring Instruments

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