Determine the thermal conductivity of the material

Assignment Help Physics
Reference no: EM131277274

One way of measuring the thermal conductivity of a material is to sandwich an electric thermofoil heater between two identical rectangular samples of the material and to heavily insulate the four outer edges, as shown in the figure. Thermocouples attached to the inner and outer surfaces of the samples record the temperatures. During an experiment, two 0.5 cm thick samples 10 cm x 10 cm in size are used. When steady operation is reached, the heater is observed to draw 25 W of electric power, and the temperature of each sample is observed to drop from 82°C at the inner surface to 74°C at the outer surface. Determine the thermal conductivity of the material at the average temperature.

1597_ab8cfb1f-a9a0-4eb2-88a2-0a1d4750b653.png

Reference no: EM131277274

Questions Cloud

Write a summary of the article on journals : Write a summary of the article on Journals. All can be accessed through the Roesch Library website. Talk to the instructor if you need help.Harvard Journal of Asiatic StudiesT'oungPao
Chain analysis for qualcomm : Identify and explain the strategic levels that the firm is expressing and assess whether the company has the competencies, resources, and capabilities to achieve its goals? In addition, identify the threats and opportunities confronting the firm a..
Define the e-waste problem and why is this a problem : Define the e-waste problem: what is happening and why is this a problem? What can manufacturers do to improve the situation with the various issues (health, hazardous materials, recycling, refuse, etc.)?
Describe a skewed population distribution variable : What is meant by a skewed population? Describe a skewed population distribution variable and provide an example.
Determine the thermal conductivity of the material : Determine the thermal conductivity of the material at the average temperature.
What does just cause for discipline mean to you : What does just cause for discipline mean to you? In your opinion, are the Seven Tests of Just Cause a valid method of analysis? Why or why not?
Provide marketing researcher definition for given population : Provide the marketing researcher's definitions for given populations:- Columbia House, a mail-order house specializing in movie and television DVDs and music CDs, wants to determine interest in a 12-for-1 offer on its CDs to new members.
Difference between entertainment and arts management : What's the difference between Entertainment and Arts Management and Music Industry?
Determine the temperature of the outer surface of the bottom : If the inner surface of the bottom of the pan is at 105°C, determine the temperature of the outer surface of the bottom of the pan.

Reviews

Write a Review

Physics Questions & Answers

  Determine how far does tina drive before passing david

David is driving a steady 31.0m/s when he passes Tina, who is sitting in her car at rest. How far does Tina drive before passing David

  The power dissipated by a resistor

The power (in watts) dissipated by a resistor is given by P = IV. The resistors used in  this experiment are 1 watt resistances i.e. they are capable of dissipating a maximum of 1 watt without overheating. What is the maximum voltage that can be put ..

  Obtain what is the velocity of the smaller fish before lunch

a 5 kg. fish swimming at 1 m/s swallows a 1 kg. What is the velocity of the smaller fish before lunch

  The man starts across rowing steadily at 075 ms and reaches

a man at point a directs his rowboat due north toward point b straight across a river of width 100 m. the river current

  What is the smallest mass that can balance in this way

What is the smallest mass that can balance in this way, given that the smallest possible charge is e=1.602Af-10Acˆ'19C?

  What is the ratio of the speed of boat a

The resistance of a copper wire of length L meter is 0.1 ohms. If the diameter of the wire is 0.045cm, find out its specific resistance.

  Determine the difference between the two frequencies

Two radio waves are used in the operation of a cellular telephone. To receive a call, the phone detects the wave emitted at one frequency by the transmitting station or base unit. determine the difference between the two frequencies used in the ope..

  What fraction of the galaxy disk is covered by stars

Assume that the disk of the Milky Way has a radius of 20 kpc (20 thousand parsecs). It contains 100 billion stars, each with a radius similar to the Sun's, 6.96 x 1010 cm. What fraction of the galaxy's disk is covered by stars?

  Find the speed of the sled after the stuntman is on board

For a movie scene, an 80kg stuntman drops from a tree onto a 46kg sled that is moving on a frozen lake with a velocity of 10m/s toward the shore. find the speed of the sled after the stuntman is on board

  An accelerator increases the total energy of electrons

an accelerator increases the total energy of electrons uniformly to 10 gev over a 3000 m path. that means that at 30 m.

  Pattern of children and young peoples development

describe the expected pattern of children and young peoples development from birth to 19years to include physical development communication and intellectual developmnet social emotional and behavioural development

  Determine the time to reach maximum height

A projectile is fired with an initial speed of 113 m/s at an angle of 60.0° above the horizontal from the top of a cliff 49.0 m high. determine the time to reach maximum height

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd