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
Enroll to start learning
You’ve 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
Define input resistance in terms of feedback systems.
💡 Hint: Refer to the discussion on voltage amplification.
Question 2
Easy
What is a desensitization factor?
💡 Hint: Think about how the formula relates to feedback.
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 effect of negative feedback on amplifier gain?
- Increases gain
- Decreases gain
- No effect
💡 Hint: Think about how feedback influences stabilization.
Question 2
True or False: The desensitization factor is always greater than one.
- True
- False
💡 Hint: Consider the formula where desensitization is applied.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider an amplifier with R_in = 500Ω, A = 20, and β = 0.05. Calculate the input resistance with feedback and discuss the impact of a load resistance of 200Ω.
💡 Hint: Break down the problem step by step, focusing on the effect of load.
Question 2
If a feedback system has β = 0.02 and A = 50, and you find the open-loop input resistance to be 1000Ω, what will the new input resistance be? Discuss the significance of this change.
💡 Hint: Use the feedback formula to analyze the change in performance.
Challenge and get performance evaluation