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In introductory electricity, what SI unit is used to measure the strength of an electric current?
A
ohm ()
B
watt (W)
C
ampere (A)
D
volt (V)
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1
Understand that electric current is the flow of electric charge through a conductor.
Recall that the SI unit for measuring electric current is defined based on the amount of charge passing through a point per unit time.
Know that the unit of electric current is the ampere, symbolized as A.
Recognize that other units listed, such as ohm (Ω), watt (W), and volt (V), measure different electrical quantities: resistance, power, and electric potential respectively.
Therefore, the correct SI unit to measure the strength of an electric current is the ampere (A).