3.8 - TEMPERATURE DEPENDENCE OF RESISTIVITY
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the general formula for resistivity in metals as it relates to temperature?
💡 Hint: Remember how \\\\$ a \\\\$ influences resistance.
Define resistivity.
💡 Hint: Think about how it affects current flow.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the effect of temperature on the resistivity of metallic conductors?
💡 Hint: Think about how hot metals behave.
True or False: The resistivity of semiconductors typically decreases with increasing temperature.
💡 Hint: Consider how heat affects electrons in semiconductors.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A heating element made of nichrome has a resistance of 100 Ω at 20 °C and a temperature coefficient of resistivity of 1.57 x 10^-5 °C^-1. Calculate its resistance at 200 °C.
💡 Hint: Follow the formula while plugging in the values carefully.
Explain why metals are generally used as conductors and their resistivity changes with temperature.
💡 Hint: Think about the atomic structure and flow of electrons in metals.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.