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
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does DC stand for?
💡 Hint: Think about battery power.
Question 2
Easy
What is the primary function of a DC-AC inverter?
💡 Hint: What power source do homes usually use?
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 does a DC-AC inverter do?
- Converts AC to DC
- Converts DC to AC
- Converts AC to AC
💡 Hint: Consider the power type used in your home.
Question 2
True or False: UPS systems use inverters to provide backup power.
- True
- False
💡 Hint: Think about what happens during power loss.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A DC source rated at 24V is connected to a DC-AC inverter that outputs a sine wave. If the inverter is designed to output 120V AC, how would you calculate the efficiency of energy conversion if the inverter uses 50W?
💡 Hint: Consider the ratio of output to input power.
Question 2
A UPS system rated for 500VA can run a load of 400W for how long if the battery has a capacity of 1000Wh? What factors need to be considered?
💡 Hint: Think about the capacity versus the load.
Challenge and get performance evaluation