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31 Oct 2021

Given information

It is known that at    the resistivity of tungsten is    and that of aluminum is    It is also known that for aluminum, the temperature coefficient of resistance is   

Step-by-step explanation

Step 1.

 

The resistivity   at temperature     is correlated to the reference temperature   and the resistivity at that temperature is   as,

The varying resistivity of due to temperature

 

Here,   is the temperature coefficient of resistance of the given material

 

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