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The solids which have the negative temperature coefficient of resistance are:
(1) metals
(2) insulators only
(3) semiconductors only
(4) insulators and semiconductors

Question. The solids which have the negative temperature coefficient of resistance are:

(1) metals

(2) insulators only

(3) semiconductors only

(4) insulators and semiconductors                                                              (NEET-2020)

Aditya Bhatt Answered question 19 February 2024
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(NEET-2020)
NTA Solutions (4):-

Answer (4)
Sol. For metals temperature coefficient of resistance is positive while for insulators and semiconductors, the temperature coefficient of resistance is negative.

Aditya Bhatt Answered question 19 February 2024
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