
Exploring AC and DC Circuits
Authored by Lori Lowery
Engineering
11th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a resistor in an AC circuit?
To store energy
To resist the flow of current
To amplify signals
To convert AC to DC
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component is used to store electrical energy in an electric field in AC circuits?
Resistor
Inductor
Capacitor
Transformer
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a DC circuit, if the voltage is 12V and the current is 2A, what is the power consumed by the circuit?
6W
12W
24W
48W
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain why AC is generally used for power distribution over long distances instead of DC.
AC is easier to generate
AC can be easily transformed to different voltages
AC is safer than DC
AC has less power loss over long distances
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compare the frequency characteristics of AC and DC.
AC has a constant frequency, DC has a variable frequency
AC has a variable frequency, DC has a constant frequency
AC has a constant frequency, DC has zero frequency
AC has a variable frequency, DC has zero frequency
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the phase difference between voltage and current in a purely resistive AC circuit?
0 degrees
45 degrees
90 degrees
180 degrees
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