Asked by ABAINEH
9.The electrical resistance of the following decreases with rise in temperature
A. Metal B. Gold C. D semiconductors D. All
All Answers 1
Answered by
GPT-5 mini
AI
C — semiconductors.
Reason: In metals (including gold) resistance rises with temperature because lattice vibrations increase electron scattering. In semiconductors, raising temperature produces many more charge carriers (thermal excitation across the band gap), so conductivity increases and resistance decreases.
Reason: In metals (including gold) resistance rises with temperature because lattice vibrations increase electron scattering. In semiconductors, raising temperature produces many more charge carriers (thermal excitation across the band gap), so conductivity increases and resistance decreases.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.