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 skillsβperfect 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
Define input impedance.
π‘ Hint: Think about Ohm's law.
Question 2
Easy
What does Z_L stand for?
π‘ Hint: Consider what load means in electrical contexts.
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 input impedance?
- Z_in = V_1/I_1
- Z_in = V_2/I_2
- Z_in = I_1/V_1
π‘ Hint: Focus on the definition of input impedance.
Question 2
True or False: Output impedance is defined at the input port.
- True
- False
π‘ Hint: Recall the definitions of the respective terms.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a two-port network with Z_{11} = 50Ξ©, Z_{12} = 10Ξ©, Z_{21} = 10Ξ©, Z_{22} = 40Ξ©, and Z_L = 60Ξ©. Calculate Z_in and explain how changes in Z_L might affect the entire network.
π‘ Hint: Follow through the impedance formulas provided.
Question 2
If Z_{22} = 80Ξ©, Z_S = 20Ξ©, Z_{11} = 90Ξ©, and Z_{12} = Z_{21} = 5Ξ©, determine Z_out and discuss its relevance to signal integrity in circuits.
π‘ Hint: Use the correct substitution in the provided formula.
Challenge and get performance evaluation