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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to the strength of a signal as the distance increases?
💡 Hint: Think about how light dims with distance.
Question 2
Easy
What does LOS stand for?
💡 Hint: It's a pathway without obstacles.
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 does free-space propagation loss indicate?
- Increase in signal power
- Decrease in signal power
- No change in signal power
💡 Hint: Think about how distance affects light or sound.
Question 2
True or False: The Friis transmission equation can help calculate path loss in urban environments.
- True
- False
💡 Hint: Consider what happens in densely built areas.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A signal operating at a frequency of 1 GHz is transmitted over a distance of 5 km. Calculate the free-space path loss.
💡 Hint: Remember to transform any unit discrepancies and make sure your log calculations are accurate.
Question 2
In a city with significant obstacles, how might NLOS propagation affect signal reliability, and what strategies could be employed to mitigate this?
💡 Hint: Think about how cell towers manage communication in built environments.
Challenge and get performance evaluation