What is the unit of measure for electrical current?

Prepare for the ISA Utility Arborist Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The unit of measure for electrical current is the ampere, often abbreviated as "amp." This unit measures the flow of electric charge in a circuit. When we talk about current, we are referring to the amount of charge that is passing through a point in the circuit per unit time, specifically one coulomb per second.

In contrast, volts measure electrical potential or voltage, which indicates how much potential energy exists to move charges in a circuit, while watts represent power, which is the rate at which electrical energy is transferred. Ohms measure electrical resistance, indicating how much a material opposes the flow of electric current. Therefore, when discussing the flow of electric charge specifically, the correct term is amps, making it the appropriate choice for this question.

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