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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the unit of electric power?
💡 Hint: Think about what we measure electrical consumption in.
Question 2
Easy
If a device uses 100 W of power for 2 hours, how much energy does it consume?
💡 Hint: Use the formula E = Pt.
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 electric power measured in?
- Watts
- Joules
- Volts
💡 Hint: Remember the term that represents the rate of energy usage.
Question 2
True or False: The formula for electric power can be expressed as P = IV.
- True
- False
💡 Hint: Think about how voltage and current relate to power.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A power plant generates 1 megawatt (MW) of electricity. If it runs for 10 hours, how much energy does it produce in kilowatt-hours?
💡 Hint: Convert megawatt to kilowatts and multiply by the time.
Question 2
You have a power strip with five outlets, each rated at 1200 W. If you plug in four devices, how much maximum power can be consumed without exceeding the rating?
💡 Hint: Multiply the number of devices by the wattage of each.
Challenge and get performance evaluation