Basic AC Circuits
About the Lecture
The lecture Basic AC Circuits by Jared Rovny, PhD is from the course Circuit Elements.
Included Quiz Questions
What is the difference between AC and DC circuits?
- AC circuits have a current which changes in direction and magnitude periodically.
- AC circuits have no resistance.
- AC circuits have an unknown voltage source.
- AC circuits are the realization of the DC circuits of theory.
- AC circuits have no voltage drops.
Why do we measure the RMS current or voltage instead of the average value over a period in AC circuits?
- Because the average value is 0
- There is no actual voltage or current in AC circuits.
- The average values are not easy to calculate.
- The current and voltage switch places with each other too rapidly.
- The average values have square roots of negatives, so are undefined.
Which of the following is true about the RMS current in an AC circuit with sinusoidal current?
- It is 1/√2 times the maximum current
- It is the square root of 2 times the maximum current
- It is half the maximum current
- It is twice the maximum current
- It is equal to the maximum current
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Author of lecture Basic AC Circuits
Jared Rovny, PhD
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