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Which among the following has weak temperature dependence values with resistivity?

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in Physics – Class 12 by (135k points)
Which among the following has weak temperature dependence values with resistivity?

(a) Silver

(b) Copper

(c) Nichrome

(d) Germanium

This question was addressed to me in exam.

I need to ask this question from Current Electricity in portion Current Electricity of Physics – Class 12

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Best answer
Correct choice is (c) Nichrome

To explain I would say: Alloys have high resistivity. The resistivity of nichrome has weak temperature dependence. At absolute zero, a pure metal has negligibly small resistivity while an alloy like nichrome has some residual resistivity.

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