Nate Core Practice Test 2025 – Comprehensive Exam Prep

Question: 1 / 400

Which unit is used to measure electric current?

Kilowatt

Volt

Ohm

Ampere

The unit used to measure electric current is the Ampere. The Ampere, often abbreviated as "Amp," quantifies the flow of electric charge in a circuit. One Ampere is defined as one coulomb of charge passing through a conductor in one second. This measurement is fundamental in understanding how much electrical current is flowing in circuits, which is crucial for various applications in electronics and electrical engineering.

In contrast, the other units mentioned serve different purposes in electrical contexts. Kilowatts measure power (the rate at which energy is used or produced), volts measure electrical potential or voltage (the force that pushes electric charge through a circuit), and ohms measure resistance (the opposition to the flow of electric current). Each of these units plays a distinct role in describing electrical phenomena, but only the Ampere directly measures electric current.

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