BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A length of aluminum wire has a resistance of 30.0 Ω at 20.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 46.2 Ω. (a) Neglecting thermal expansion, find the temperature of the oven. (b) Qualitatively, how would thermal expansion be expected to affect the answer?

 (a)

To determine

 The final temperature of oven.

Explanation

 Given Info: The resistance of aluminum wire at 20.0°C is 30.0Ω. On warming, the resistance increases to 46.2Ω.

 Formula to calculate the temperature is

     T=T0+(R/R0)1α

  • R is the resistance at some temperature T,
  • R0 is the resistance at some reference temperature T0,
  • α is the temperature coefficient of resistivity of silver,

 Substitute 30.0Ω for R0,46.2Ω for R ,20.0°C for T0, and 3

 (b)

To determine

The effect of thermal expansion on answer of part (a)

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Which of these foods should form the bulk of the pregame meal? a. breads, potatoes, pasta, and fruit juices. b....

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Why can’t a white dwarf contract as it cools? What is its fate?

Horizons: Exploring the Universe (MindTap Course List)