27. Resistors & DC Circuits

Intro to Current

Multiple Choice
In introductory electricity, what is the SI unit of electric current?
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Multiple Choice
Why must an electric circuit maintain a closed loop for current to flow?
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Multiple Choice
In introductory circuit analysis, which wire gauge (American Wire Gauge, AWG) will typically carry the most current safely (all else equal, such as material and length)?
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Multiple Choice
Which of the following best describes an electrical current?
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Multiple Choice
Which statement correctly describes the formation of an $electric current$ ?
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Multiple Choice
Which of the following best describes how a switch functions in an electrical circuit?
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Multiple Choice
Which type of electric current is most commonly supplied to homes for powering appliances?
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Multiple Choice
Which of the following is the correct unit for measuring electric current?
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Multiple Choice
Which of the following is the standard unit of measurement for electric current?
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Multiple Choice
Topic: Intro to Current. For copper wire of the same length, which American Wire Gauge (AWG) will carry the most current before excessive heating (i.e., has the lowest resistance)?
Multiple Choice
If a wire delivers a charge $Q$ in a time $t$ with current $I$ , what is the current in a second wire that delivers twice as much charge ( $2 Q$ ) in half the time ( $\frac{t}{2}$ )?
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Multiple Choice
Which of the following is a unit of electric current in the SI system?
Multiple Choice
In an introductory electricity context, what property describes the ability of a material to conduct electrical current?
Multiple Choice
Which type of electric current is typically produced by a standard chemical battery?
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Multiple Choice
In a circuit consisting of a battery connected in series with a resistor and an ideal capacitor, what is the current through the battery after a very long time has passed?
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