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There is a cylindrical wire whose temper...

There is a cylindrical wire whose temperature coefficient of resistivity is `6 times 10^-3^@C^-1` and co-efficient of linear expansion in `10^-3^@C^-1`. Its temperature coefficient of resistance is `N times 10^-3^@c^-1` . Then, the value of N is:

A

4

B

5

C

7

D

8

Text Solution

AI Generated Solution

To solve the problem, we need to find the temperature coefficient of resistance (α_R) of a cylindrical wire given its temperature coefficient of resistivity (α_ρ) and its coefficient of linear expansion (α). ### Step-by-Step Solution: 1. **Understand the Given Values**: - Temperature coefficient of resistivity, α_ρ = 6 × 10^(-3) °C^(-1) - Coefficient of linear expansion, α = 1 × 10^(-3) °C^(-1) ...
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