Qstnid -9- The Solids Which Have Negative Temperature Coefficient Of Resistance Are : - Neet 2020 Questions With Solutions Year:2020 - Neet-xii-physics

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NEET-XII-Physics

neet 2020 questions with solutions year:2020

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Qstn# 9 Prvs-Qstn Next-Qstn

#9
The solids which have negative temperature coefficient of resistance are :
(A)metals
(B)insulators only
(C)semiconductors only
(D)insulators and semiconductors

digAnsr: D
Ans : For metals temperature coefficient of resistance is positive while for insulators and semiconductors, temperature coefficient of resistance is negative