AP EAMCET · PHYSICS · Current Electricity
The conductivity of a conductor decreases with temperature because, on heating:
- A Atoms vibrates vigorously
- B Conductor expands
- C Electrons gain energy
- D Electrons vibrate vigorously
Answer & Solution
Correct Answer
(C) Electrons gain energy
Step-by-step Solution
Detailed explanation
In metals, conductivity is due to movement of free electrons. When temperature increases, the vibration of metal ions increases. This results in increase in resistance of metal and hence, decrease in conductivity.
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