27. Resistors & DC Circuits

Intro to Current

Multiple Choice
Which of the following best defines electric current?
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Multiple Choice
Which of the following is the correct SI unit for electric current?
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Multiple Choice
In introductory electricity, electric current is measured in which SI unit?
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Multiple Choice
In an introductory discussion of electric current, two common sources of electric current are generators and which of the following?
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Multiple Choice
Which type of electric current is typically supplied to household wiring in most homes?
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Multiple Choice
A current of $1.8 A$ delivers a charge of $2.5 C$ . How much time was required?
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Multiple Choice
In an electric circuit, how is current measured using an in-line (series) ammeter?
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Multiple Choice
A circuit consists of a $12 V$ battery connected in series with a $6 Ω$ resistor. What is the current flowing through the resistor?
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Multiple Choice
In an electric circuit, how is current measured using an in-line (series) ammeter?
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Multiple Choice
In the circuit shown, two batteries with emfs $e_{1}$ and $e_{2}$ are connected in series with resistors $R_{1}$ and $R_{2}$ . If the current flowing through $e_{2}$ is $i_{2}$ , what is its value?
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Multiple Choice
Which of the following best describes the relationship between electric current $I$ , charge $Q$ , and time $t$ in a conductor?
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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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