The intensity of an electrical current is measured in what unit?

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Study for the Con Edison Basic Electric Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The intensity of an electrical current is measured in what unit?

Explanation:
Current intensity is the rate at which electric charge flows through a conductor, and the unit for this rate is the ampere (A). One ampere means that one coulomb of charge passes a point every second. This distinguishes current from voltage, which is the driving pressure behind the flow and is measured in volts; from power, measured in watts; and from resistance, measured in ohms. Ohm’s law ties these together by showing that current equals voltage divided by resistance. In practical terms, higher currents mean more charge passing per second; for example, a device that draws about half an ampere at a given voltage demonstrates a moderate level of current flow.

Current intensity is the rate at which electric charge flows through a conductor, and the unit for this rate is the ampere (A). One ampere means that one coulomb of charge passes a point every second. This distinguishes current from voltage, which is the driving pressure behind the flow and is measured in volts; from power, measured in watts; and from resistance, measured in ohms. Ohm’s law ties these together by showing that current equals voltage divided by resistance. In practical terms, higher currents mean more charge passing per second; for example, a device that draws about half an ampere at a given voltage demonstrates a moderate level of current flow.

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