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)?
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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?
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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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