Physics A-Level
Temperature dependence of conductivity
What Temperature dependence of conductivity means in Physics A-Level, as defined for OCR.
Definition of Temperature dependence of conductivity
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Reference: OCR
In semiconductors n rises steeply with temperature as more electrons are freed, so resistance falls, while in metals n is approximately constant with temperature.
Topics that use Temperature dependence of conductivity
- Mean drift velocity (OCR A-Level)
Related terms
- Conductors, semiconductors and insulators
- Elementary charge
- Number density of charge carriers
- Random thermal motion versus drift motion
- Relationship between current and drift velocity
- Mean drift velocity
- Microscopic model of current
Using Temperature dependence of conductivity in the exam
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