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 skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is positive feedback?
💡 Hint: Think about how signals reinforce each other.
Question 2
Easy
What is one of Barkhausen's criteria?
💡 Hint: Consider the required gain for maintaining oscillation.
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 must the loop gain be for an oscillator to sustain oscillation?
- < 1
- = 1
- ≥ 1
💡 Hint: Think about what happens if the gain is less than one.
Question 2
In positive feedback, the feedback signal must be in phase with the input signal.
- True
- False
💡 Hint: Consider what happens to feedback when signals are out of alignment.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an oscillator circuit and analyze how to achieve Barkhausen’s criteria. Detail the components used and how they work together.
💡 Hint: Think about how resistors and capacitors can influence gain and phase.
Question 2
Predict the outcome of a feedback circuit where the gain dips below 1. What implications does this have for the circuit's performance?
💡 Hint: Analyze how feedback interacts with the circuit's loss elements.
Challenge and get performance evaluation