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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is convection?
π‘ Hint: Think of how heat moves in fluids.
Question 2
Easy
Name one example of natural convection.
π‘ Hint: Consider what happens to hot air.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What type of convection happens without external force?
π‘ Hint: What happens when hot air rises?
Question 2
Newton's Law of Cooling describes which process?
π‘ Hint: Does it relate to heat transfer?
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
A fluid with a heat transfer coefficient of 15 W/mΒ²K flows over a surface at 70Β°C. If the surrounding fluid is at 30Β°C, what is the heat transfer rate across an area of 3 mΒ²?
π‘ Hint: Apply the convection formula you learned.
Question 2
Discuss how the concept of convection applies to the cooling of electronic devices.
π‘ Hint: Consider the mechanisms in electronic gadgets.
Challenge and get performance evaluation