Given the temperature coefficient of resistivity of a certain wire to be 2 x10−3 (°C)−1.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 96.52 °C?

Given the temperature coefficient of resistivity of a certain wire to be 2 x10−3 (°C)−1.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 96.52 °C?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 12CQ: Explain why R=R0(1 + a?T) for the temperature variation of the resistance R of an object is not as...

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

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Given the temperature coefficient of resistivity of a certain wire to be 2 x10⁻³ (°C)⁻¹.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 96.52 °C?

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