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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the power consumed by a device with a supply voltage of 50 V and a current of 2 A.
💡 Hint: Use P = V × I to find power.
Question 2
Easy
What is the unit of power?
💡 Hint: Remember, power is how quickly energy is used.
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 a circuit?
- P = V + I
- P = V × I
- P = V / I
💡 Hint: Think about how voltage and current work together.
Question 2
True or False: Power is always measured in Wattts.
- True
- False
💡 Hint: Remember the units for measuring power.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An electric motor operates at 240 V and consumes 3 A. Calculate the power and determine the energy consumed if it runs for 2 hours.
💡 Hint: Calculate power first, then energy using time.
Question 2
A circuit has a voltage of 48 V and a total current of 4 A. What is the power? If the current is doubled, what is the new power?
💡 Hint: Find the initial power and apply the change in current to find the new power.
Challenge and get performance evaluation