9 - Alternating Current
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is Alternating Current?
💡 Hint: Consider the definition given in the chapter.
What unit measures frequency?
💡 Hint: Think about how often something occurs per second.
3 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does AC stand for?
💡 Hint: Think of the terms used for electrical current.
Is it True or False: In AC circuits, the current always lags the voltage.
💡 Hint: Consider how inductors and capacitors behave.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a voltage of 230V RMS, what is the peak voltage?
💡 Hint: Recall the relationship between RMS and peak values.
If the power factor of a circuit is 0.8 and the apparent power is 100VA, what is the real power?
💡 Hint: Think about how to apply the power factor in calculating real power.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.