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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the unit of electrical power?
💡 Hint: Think of common household appliances.
Question 2
Easy
What is the formula for calculating power?
💡 Hint: It's about voltage and current.
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 unit of electrical power?
- Watts
- Joules
- Amperes
💡 Hint: Remember the definitions of energy units.
Question 2
True or False: Power is the rate of energy consumed over time.
- True
- False
💡 Hint: Think about energy in electrical systems.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a circuit that operates at 12 V and provides 3 A of current. Calculate the total power and how much energy is consumed in 4 hours.
💡 Hint: Remember to convert hours to seconds for energy.
Question 2
A resistor of 15 Ω is connected to a 60 V source. Calculate its power, and if it runs for 5 minutes, how much energy is dissipated?
💡 Hint: Keep using P = V² / R for power calculation, then E = P * Δt.
Challenge and get performance evaluation