What is the SI unit for current?

Study for the IGCSE Physics Electricity Test. Master key concepts with flashcards and multiple choice questions, each providing hints and explanations. Prepare with confidence for your exam!

Multiple Choice

What is the SI unit for current?

Explanation:
Current is the rate at which electric charge flows through a point in a circuit. Since charge is measured in coulombs and time in seconds, the unit for current is coulombs per second, which we call the ampere (symbol A). The ampere is one of the SI base units. So the SI unit for current is the ampere. The other units listed correspond to different quantities: volt measures potential difference, ohm measures resistance, and watt measures power.

Current is the rate at which electric charge flows through a point in a circuit. Since charge is measured in coulombs and time in seconds, the unit for current is coulombs per second, which we call the ampere (symbol A). The ampere is one of the SI base units. So the SI unit for current is the ampere. The other units listed correspond to different quantities: volt measures potential difference, ohm measures resistance, and watt measures power.

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