What is the SI unit of current?

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1. Electric current is the rate of flow of electric charge, denoted $I$.
2. Its SI unit is the ampere (symbol $\mathrm{A}$), defined as $1\ \mathrm{A}=1\ \mathrm{C/s}$ (one coulomb per second).
3. From the given options, (2) Ampere is the correct SI unit of current.

FINAL_ANSWER: b

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