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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the relationship between wire length and resistance?
💡 Hint: Think of it like a marathon—more distance means more effort!
Question 2
Easy
How does increasing the diameter of a wire affect its resistance?
💡 Hint: Consider how well you can move through a wide space versus a narrow one.
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
How does increasing the length of a wire affect its resistance?
- Decreases resistance
- Increases resistance
- No effect
💡 Hint: Remember the longer the path, the more collisions occur!
Question 2
True or False: A thicker wire always has higher resistance than a thinner wire of the same material.
- True
- False
💡 Hint: Think about how much space you have to move in a narrow versus wide hallway.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A gold wire (resistivity 2.44 x 10^-8 Ω·m) is 150 meters long and has a diameter of 1.0 mm. What is its resistance?
💡 Hint: Convert the diameter to meters and remember to use π for area calculation!
Question 2
If a wire's resistance is 10 Ω at room temperature, what will its resistance be if the temperature increases by 50°C given that the temperature coefficient of resistance is 0.004 per °C?
💡 Hint: Consider the impact temperature changes have based on the coefficient!
Challenge and get performance evaluation