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The temperature coefficient of a metal as the temperature increases will ____________(a) Decreases(b) Increases(c) Remains unchanged(d) Increases and remains sameI have been asked this question by my school teacher while I was bunking the class.This key question is from Advanced Problems on Network Theorems topic in division Useful Theorems in Circuit Analysis of Network Theory

Answer»

Right OPTION is (a) Decreases

To explain I would say: We KNOW that the temperature coefficient is,

Given by, α = \(\frac{α_0}{1 + α_0 t}\)

Since temperature is present at the denominator, so with INCREASE in temperature t, the denominator INCREASES and hence the fraction decreases.

So, temperature coefficient decreases.



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