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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define capacitive reactance.
💡 Hint: What does the formula XC involve?
Question 2
Easy
What is the phase relationship between current and voltage in a capacitive circuit?
💡 Hint: What direction does the current move compared to the voltage?
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 capacitive reactance?
- XC = ωC
- XC = 1/(ωC)
- XC = jωC
💡 Hint: Think about how frequency and capacitance relate to opposition.
Question 2
True or False: In a purely capacitive circuit, the voltage leads the current.
- True
- False
💡 Hint: Think about who reaches its peaks first.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 470µF capacitor is connected across a 120V AC supply operating at 60Hz. Calculate the capacitive reactance and the current flowing through it.
💡 Hint: Calculate XC first and then apply Ohm's Law for AC.
Question 2
An AC circuit consists of a 10µF capacitor connected to a 50Hz supply. Calculate the impedance and current if the source voltage is 230V.
💡 Hint: Don't forget to convert XC into a complex number before finding current.
Challenge and get performance evaluation