Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
Youβve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for capacitive reactance?
π‘ Hint: Consider how capacitance and frequency relate.
Question 2
Easy
In an AC circuit, does the average power in a capacitive load equal zero?
π‘ Hint: Think about energy storage in a capacitor.
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 relationship between current and voltage in a capacitive circuit?
- Current lags voltage by Ο/2
- Voltage leads current by Ο/4
- There is no phase difference
π‘ Hint: Consider the charging and discharging behavior of capacitors.
Question 2
Does a capacitor store energy?
- True
- False
π‘ Hint: Think about the role of capacitors in circuits.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 50Β΅F capacitor is connected to a 120V, 60Hz AC supply. Calculate the capacitive reactance and the peak current in the capacitor.
π‘ Hint: Start with calculating w and use the formulae for reactance.
Question 2
In a circuit, if the capacitance of a capacitor is doubled while keeping frequency fixed, what would happen to the peak current and capacitive reactance?
π‘ Hint: Consider the formulas for reactance and current.
Challenge and get performance evaluation