Q228
Consider the following statements: The conductivity of a metal has negative temperature coefficient since: 1. The electron concentration increase with temperature. 2. The electron mobility decreases with temperature. 3. The electron-lattice scattering rate increases with temperature. Which of the above statements is/are correct?
A.
1 only
B.
1 and 2
C.
2 and 3
AnswerD.
3 only
Answer: Option C
Solution
Answer: Option C
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