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Which topic are you most likely to find in a physics textbook?
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1. Intro to Physics Units
Introduction to Units
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Which of the following units is used to measure electric current?
A
(Ohm)
B
(Ampere)
C
(Volt)
D
(Watt)
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Understand that electric current is the flow of electric charge through a conductor, typically measured in terms of how much charge passes a point per unit time.
Recall the standard units used in electricity: Ohm (Ω) measures resistance, Volt (V) measures electric potential difference, Watt (W) measures power, and Ampere (A) measures electric current.
Identify that the unit for electric current is the Ampere (A), which quantifies the amount of charge flowing per second.
Recognize that 1 Ampere corresponds to 1 Coulomb of charge passing through a point in 1 second, mathematically expressed as \(I = \frac{Q}{t}\), where \(I\) is current, \(Q\) is charge, and \(t\) is time.
Conclude that among the given options, the correct unit for measuring electric current is the Ampere (A).
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