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

(1) insulators and semiconductors

(2) metals

(3) insulators only

(4) semiconductors only

1 Answer

Best answer

Ans : (1) insulators and semiconductors

Explanation :

The negative temperature coefficient of the resistance is only present  in the insulators or the semiconductors.

In these, the resistance decreases with increase in temperature.

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