
AC Circuit Analysis and Concepts

Interactive Video
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Physics
•
10th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Kirchhoff's Voltage Law state in the context of this circuit?
The source voltage equals the sum of the resistor and capacitor voltages.
The sum of all voltages in a closed loop is zero.
The voltage across each component is the same.
The current through each component is the same.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the impedance of a resistor characterized?
Purely imaginary with a phase angle of -90 degrees.
Purely imaginary with a phase angle of 90 degrees.
Purely real with no imaginary part.
A combination of real and imaginary parts.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the reactance of a capacitor?
1 / (2π × frequency × capacitance)
2π × frequency × capacitance
1 / (resistance × capacitance)
Resistance × capacitance
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the total impedance in a series circuit?
By multiplying the impedances of all components.
By adding the real parts and subtracting the imaginary parts.
By adding the impedances of all components.
By subtracting the real parts and adding the imaginary parts.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between current and impedance in a series circuit?
Current is the voltage divided by impedance.
Current is the difference between voltage and impedance.
Current is the sum of voltage and impedance.
Current is the product of voltage and impedance.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the voltage across a resistor calculated using Ohm's law in AC circuits?
By subtracting the current from the impedance.
By multiplying the current by the impedance.
By adding the current and impedance.
By dividing the current by the impedance.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the phase angle of voltage across a resistor compared to the current?
The phase angle of voltage is the same as the current.
The phase angle of voltage is opposite to the current.
The phase angle of voltage is 90 degrees behind the current.
The phase angle of voltage is 90 degrees ahead of the current.
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