JEE Main 2012 Physics question
Not in JEE Advanced syllabus
This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: A pure semiconductor has negative temperature coefficient of resistance. Statement 2: On raising the temperature, more charge carriers are released into the conduction band.
Answer: (4)
Solution
Raising the temperature excites more electrons across the band gap, increasing the carrier concentration (Statement 2 true); hence
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