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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the unit of power?
π‘ Hint: It's named after a famous inventor.
Question 2
Easy
How do you calculate power using voltage and current?
π‘ Hint: Think about the rate of work being done.
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 formula for calculating power in an electrical circuit?
- P = V + I
- P = V β I
- P = V / I
π‘ Hint: Remember, it's about how fast energy is used.
Question 2
True or False: One Watt is the equivalent of one Joule per minute.
- True
- False
π‘ Hint: Think about time - seconds matter here.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a device that operates at 240 V and draws 10 A. Calculate the power it uses and explain how you derived your answer.
π‘ Hint: Remember the basic power formula.
Question 2
A power line rated at 100 kV transmits 2000 A. Calculate the power loss if the resistance of the line is 0.5 Ξ© per km and it transmits power over 10 km.
π‘ Hint: Consider how resistance affects power loss.
Challenge and get performance evaluation