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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for capacitive reactance?
💡 Hint: Remember, this relationship involves frequency and capacitance.
Question 2
Easy
In a purely capacitive circuit, does current lead or lag voltage?
💡 Hint: Think about the phase relationship in AC circuits.
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
In purely capacitive circuit behavior, current leads voltage by how many degrees?
- 0 degrees
- 90 degrees
- 180 degrees
💡 Hint: Think about their phase relationship.
Question 2
The formula for capacitive reactance is:
- True
- False
💡 Hint: Consider how reactance is calculated.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a purely capacitive circuit with capacitors connected in series, how does the equivalent capacitance change? Calculate the equivalent capacitance of three capacitors of 4μF, 6μF, and 10μF.
💡 Hint: Don't forget to convert to the equivalent.
Question 2
Analyze how the phase angle affects the power factor in a purely capacitive circuit and determine the power factor if the voltage is 120 V and the capacitive reactance is 30 ohms.
💡 Hint: Consider the definition of power factor.
Challenge and get performance evaluation