Multiple Choice
Why is a cubic centimeter () considered an example of a derived unit?
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1. Intro to Physics Units
Introduction to Units
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Which of the following is the SI unit of measurement for electrical current?
A
(volt)
B
(watt)
C
(ohm)
D
(ampere)
Verified step by step guidance1
Understand that electrical current is the flow of electric charge through a conductor, and it is measured in terms of how much charge passes a point per unit time.
Recall that the SI unit system assigns specific units to different physical quantities, and for electrical current, the unit is named after André-Marie Ampère.
Identify the symbol for the unit of electrical current, which is the ampere, represented by the letter \(A\).
Differentiate the ampere from other electrical units: the volt (\(V\)) measures electric potential difference, the watt (\(W\)) measures power, and the ohm (\(\Omega\)) measures electrical resistance.
Conclude that the correct SI unit for electrical current is the ampere (\(A\)).
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