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 voltage gain in an amplifier?
💡 Hint: Think about how an amplifier boosts signals.
Question 2
Easy
Why is high input resistance important?
💡 Hint: Consider how devices interact with each other.
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 voltage gain?
- V_out / V_in
- R_out / R_in
- R_in / R_out
💡 Hint: Recall the definition from our class.
Question 2
True or False: High output resistance is ideal for driving loads.
- True
- False
💡 Hint: Think about energy transfer efficiency.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An amplifier has a voltage gain of 80. If you input 0.25 V, what is the output voltage? If the input resistance is 20 kΩ and the output resistance is 100 Ω, discuss how these values affect your design approach.
💡 Hint: Use the gain formula first, then assess input/output resistance effects.
Question 2
Evaluate a scenario where an amplifier’s input resistance is very low (e.g., 1 kΩ). Discuss the problems that could arise in a circuit with such characteristics without feedback measurements.
💡 Hint: Consider the interaction between the amplifier and the connected devices.
Challenge and get performance evaluation