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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the unit of resistivity?
π‘ Hint: Think about the measurement that describes how much a material resists electrical flow.
Question 2
Easy
Name a good example of a conductor.
π‘ Hint: What metal is often used in electrical wiring?
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
Which material type has the highest resistivity?
- Conductors
- Semiconductors
- Insulators
π‘ Hint: Consider which materials restrict electrical flow the most.
Question 2
True or False: The resistivity of semiconductors always increases with temperature.
- True
- False
π‘ Hint: Think about how temperature affects movement within materials.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A material is classified as a semiconductor with a resistivity of 1.0 Γ 10^-3 Ξ©m at 20Β°C. What will be its resistivity at 100Β°C if the temperature coefficient is 0.003/Β°C?
π‘ Hint: Plug-in values into the resistivity formula for temperature change.
Question 2
A wire of length 2m and cross-sectional area 1 Γ 10^-6 mΒ² has a resistance of 5 Ξ©. What is its resistivity?
π‘ Hint: Use dimensional analysis to relate dimensions with resistance.
Challenge and get performance evaluation