27. Resistors & DC Circuits

Intro to Current

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?
Multiple Choice
In an introductory discussion of electric current, two common sources of electric current are generators and which of the following?
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?
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?
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?
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)?
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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