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