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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define Alternating Current.
💡 Hint: Think about how this is different from direct current.
Question 2
Easy
What is RMS value?
💡 Hint: Consider how you measure electrical effectiveness.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What defines Alternating Current?
- A current with constant direction
- A current that varies in magnitude only
- A current that reverses direction periodically
💡 Hint: Think about how AC behaves differently compared to DC.
Question 2
True or False: Power factor is always equal to 1 in AC circuits.
- True
- False
💡 Hint: Consider energy losses in AC systems.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a circuit with a power factor of 0.6. What implications does this have for the efficiency of the circuit? Calculate the real power given a voltage of 230V and RMS current of 10A.
💡 Hint: What does a lower power factor indicate about the efficiency?
Question 2
An AC motor runs on a sinusoidal waveform with a peak voltage of 120V. What is the RMS voltage, and how does it affect power calculations?
💡 Hint: Remember the relationship between peak and RMS voltage.
Challenge and get performance evaluation