Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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 related to the topic.
Question 1
Easy
What is instantaneous power?
💡 Hint: Think about how power can change between different points in time.
Question 2
Easy
How do you calculate average power?
💡 Hint: Remember the RMS values make the equation easier to work with.
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 is the equation for instantaneous power in AC circuits?
💡 Hint: Consider what variables are involved in power calculation.
Question 2
True or False: A power factor of 0 means that all power is used effectively.
- True
- False
💡 Hint: Think about the implications of the cosine function.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A circuit has a peak voltage of 300V and a peak current of 15A, find the instantaneous power at t = 0.25 seconds if the frequency is 60Hz.
💡 Hint: Remember to calculate the values of V(t) and I(t) first using their respective sine functions.
Question 2
In an AC circuit with V_rms = 230V, I_rms = 5A, and a power factor of 0.8, determine the average power consumed.
💡 Hint: Utilize the average power formula efficiently using the provided values.
Challenge and get performance evaluation