The electrical conductivity of metal sometimes decreases with the?
Correct answer: B. Increase in temperature
- A. Increase in pressure
- B. Increase in temperature
- C. Decrease in temperature
- D. Decrease in pressure
Explanation
The electrical conductivity of metals decreases with an increase in temperature as with the increase in temperature, the positive metal ions also begin to oscillate and the motion hinders the free movement of mobile electrons between the positive ions.This hindrance decreases the electrical conductivity.
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About Electrical Properties of Solids
Electrical properties of solids depend on their band structure, charge carriers and conductivity. The topic compares conductors, insulators and semiconductors, relates resistivity to temperature, and covers intrinsic and extrinsic semiconductors, donor and acceptor impurities, electron and hole conduction, and the formation of p-type and n-type materials.
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