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
What does an amplifier do?
💡 Hint: Think about its primary function in electronics.
Question 2
Easy
What is the role of DC bias in amplifiers?
💡 Hint: Recall how bias relates to transistor functionality.
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 main function of an amplifier?
- To decrease signal strength
- To maintain current level
- To increase signal strength
💡 Hint: Think about what amplifiers do in electronic circuits.
Question 2
True or False: A current amplifier only amplifies voltage signals.
- True
- False
💡 Hint: Refer back to the definitions of amplifier types.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a circuit using a current amplifier and explain how you would account for the loading effect with connected devices.
💡 Hint: Think of common devices like speakers or sensors that could be connected and how they influence the circuit.
Question 2
A voltage amplifier has a gain of 50, and the input voltage is 2V. Calculate the output voltage and discuss how DC biases play a role in performance.
💡 Hint: Consider how gain magnifies input and the significance of maintaining a stable operating point.
Challenge and get performance evaluation