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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for calculating apparent power?
💡 Hint: Think about the units of voltage and current.
Question 2
Easy
If the real power in a circuit is 500 W and the reactive power is 400 VAR, what is the apparent power?
💡 Hint: Use the Pythagorean theorem.
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 apparent power?
- Watts
- Volt-Amperes
- Ohms
💡 Hint: Think about how real power is measured.
Question 2
True or False: Reactive power does useful work.
- True
- False
💡 Hint: Consider the role of reactive components.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given an AC circuit with a real power of 1500 W and a reactive power of 1200 VAR, calculate the apparent power and the power factor.
💡 Hint: Use the power triangle for this calculation.
Question 2
If an AC circuit with a voltage of 240 V and an unknown current has an apparent power of 1000 VA, find the RMS current and the power factor if the real power is 800 W.
💡 Hint: Calculate the current by rearranging the apparent power formula.
Challenge and get performance evaluation