Current Electricity - Result Question 1

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

[2020]

(a) insulators only

(b) semiconductors only

(c) insulators and semiconductors

(d) metals

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Answer:

Correct Answer: 2. (c)

Solution:

  1. (c) For metals temperature coefficient of resistance is positive while for insulators and semiconductors, temperature coefficient of resistance is negative.