**Understanding Resistivity and Temperature Dependence**The resistivity of a metal increases slightly with increased temperature. This relationship is expressed by the formula:\[ \rho = \rho_0 [1 + \alpha(T - T_0)] \]Where:- \( \rho \) is the resistivity at temperature \( T \).- \( \rho_0 \) is the reference resistivity at a reference temperature \( T_0 \) (usually 20°C).- \( \alpha \) is the temperature coefficient of resistivity. For copper, \( \alpha \) is \( 3.9 \times 10^{-3} \, \text{°C}^{-1} \). Example Problem:Suppose a long, thin copper wire has a resistance of 0.25 Ω at 20°C.**Problem Statement (Part A):**At what temperature, in °C, will its resistance be 0.25 Ω?**Interactive Input Box:**Users are prompted to enter the temperature \( T \) where the resistance becomes 0.25 Ω. An input field is provided for entering the temperature in °C, accompanied by interface buttons for submission and requesting the answer.

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The resistivity of a metal increases slightly with increased temperature. This can be expressed as p=po [1 + a(T-To)], where To is a reference temperature, usually 20° C, and a is the temperature coefficient of resistivity. For copper, a=3.9x 10-3 °C-1. Suppose a long, thin copper wire has a resistance of 0.25 at 20°C. Part A At what temperature, in °C, will its resistance be 0.25 ? T = Submit 15. ΑΣΦ Request Answer 2 ? °C

The resistivity of a metal increases slightly with increased temperature. This can be expressed as p=po [1 + a(T-To)], where To is a reference temperature, usually 20° C, and a is the temperature coefficient of resistivity. For copper, a=3.9x 10-3 °C-1. Suppose a long, thin copper wire has a resistance of 0.25 at 20°C. Part A At what temperature, in °C, will its resistance be 0.25 ? T = Submit 15. ΑΣΦ Request Answer 2 ? °C

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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