Consider the following statements:The conductivity of a metal has nega – McqOptions

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1.	Consider the following statements:The conductivity of a metal has negative temperature coefficient since: The electron concentration increases with temperature.The electron mobility decreases with temperature.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
D.	3 only
Answer» D. 3 only

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