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 type of noise is caused by thermal agitation of charge carriers?
💡 Hint: Think about the motion of particles in a resistor.
Question 2
Easy
What is shot noise primarily caused by?
💡 Hint: Consider the behavior of charge in semiconductor devices.
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 primary cause of thermal noise?
- Charge movement
- Temperature
- Voltage fluctuations
💡 Hint: Recall the interaction between temperature and particle motion.
Question 2
True or False: Flicker noise increases with frequency.
- True
- False
💡 Hint: Think about the name 'flicker' and its relationship to frequency.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the thermal noise voltage for a 1 kOhm resistor at room temperature (300 K) over a bandwidth of 1 MHz.
💡 Hint: Substitute carefully and remember to use proper SI units.
Question 2
If an LNA has a noise figure of 3 dB, what is the linear noise figure? How does this reflect on its performance?
💡 Hint: Use logarithmic properties for conversion.
Challenge and get performance evaluation